Practice this free StudyHUB गति mock test with 25 MCQs. This test is useful for UPSC, SSC, State PSC, Railway, and Defence Exams and covers गति mock test, गति mcq, गति questions. Check your score after submitting the test and review the explanations to strengthen your preparation.
Test Details
- Questions: 25
- Time: 15 minutes
- Language: Hindi
- Difficulty: Moderate
- Useful for: UPSC, SSC, State PSC, Railway, and Defence Exams
Instructions
- The countdown timer will display the remaining time.
- There are 25 multiple-choice questions in this practice test.
- Each correct answer carries +1 mark.
- Each wrong answer carries -0.33 mark.
- The test will auto-submit when the timer reaches zero.
- This is StudyHUB’s practice scoring and may differ from the official exam marking scheme.
- Review the detailed explanations after submitting the test.
[WpProQuiz_Questions]
var wpProQuizQuestions = [{“question”: “\u092f\u0926\u093f \u0938\u094d\u092a\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u092c\u0932 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 k \u0935\u093e\u0932\u0947 \u0938\u094d\u092a\u094d\u0930\u093f\u0902\u0917 \u0915\u094b n \u0938\u092e\u093e\u0928 \u092d\u093e\u0917\u094b\u0902 \u092e\u0947\u0902 \u0915\u093e\u091f \u0926\u093f\u092f\u093e \u091c\u093e\u090f, \u0924\u094b \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092d\u093e\u0917 \u0915\u093e \u092c\u0932 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u094d\u092f\u093e \u0939\u094b\u0917\u093e? / If a spring with force constant k is cut into n equal parts, what will be the force constant of each part?”, “options”: [“k/n”, “nk”, “n/k”, “k”], “answerIdx”: 1, “explanation”: “\u092f\u0926\u093f \u0938\u094d\u092a\u094d\u0930\u093f\u0902\u0917 \u0915\u0947 \u092c\u0932 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 \u0915\u094b n \u0938\u092e\u093e\u0928 \u092d\u093e\u0917\u094b\u0902 \u092e\u0947\u0902 \u0915\u093e\u091f \u0926\u093f\u092f\u093e \u091c\u093e\u090f \u0924\u094b \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092d\u093e\u0917 \u0915\u093e \u092c\u0932 \u0928\u093f\u092f\u0924\u093e\u0902\u0915 nk \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948\u0964 / If the force constant of a spring is cut into n equal parts, the force constant of each part becomes nk. \u200b”}, {“question”: “‘\u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u094d\u0930\u093f\u092f\u093e \u0915\u0947 \u092c\u0930\u093e\u092c\u0930, \u092a\u0930\u0928\u094d\u0924\u0941 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948’\u2014\u092f\u0939 \u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u093e \u0915\u094c\u0928-\u0938\u093e \u0928\u093f\u092f\u092e \u0939\u0948? / ‘To every action, there is an equal and opposite reaction’\u2014which law of Newton is this?”, “options”: [“\u092a\u094d\u0930\u0925\u092e \u0928\u093f\u092f\u092e / First law”, “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0928\u093f\u092f\u092e / Second law”, “\u0924\u0943\u0924\u0940\u092f \u0928\u093f\u092f\u092e / Third law”, “\u0917\u0941\u0930\u0941\u0924\u094d\u0935\u093e\u0915\u0930\u094d\u0937\u0923 \u0928\u093f\u092f\u092e / Law of gravitation”], “answerIdx”: 2, “explanation”: “\u092f\u0939 \u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u093e \u0924\u0943\u0924\u0940\u092f \u0917\u0924\u093f-\u0928\u093f\u092f\u092e \u0939\u0948\u0964 \u0907\u0938\u0915\u0947 \u0909\u0926\u093e\u0939\u0930\u0923 \u092c\u0902\u0926\u0942\u0915 \u0938\u0947 \u0917\u094b\u0932\u0940 \u091a\u0932\u0928\u0947 \u092a\u0930 \u092a\u0940\u091b\u0947 \u0927\u0915\u094d\u0915\u093e \u0932\u0917\u0928\u093e, \u0930\u0949\u0915\u0947\u091f \u0915\u093e \u0909\u0921\u093c\u0928\u093e \u0906\u0926\u093f \u0939\u0948\u0902\u0964 / This is Newton’s third law of motion. Its examples include the backward recoil when a gun is fired, rocket propulsion, etc. \u200b”}, {“question”: “\u0930\u0947\u0916\u0940\u092f \u0938\u0902\u0935\u0947\u0917 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u093e \u0938\u093f\u0926\u094d\u0927\u093e\u0928\u094d\u0924 \u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u0947 \u0915\u093f\u0938 \u0928\u093f\u092f\u092e \u0915\u093e \u0939\u0940 \u0926\u0942\u0938\u0930\u093e \u0930\u0942\u092a \u0939\u0948? / The principle of conservation of linear momentum is another form of which of Newton’s laws?”, “options”: [“\u092a\u094d\u0930\u0925\u092e \u0928\u093f\u092f\u092e / First law”, “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0928\u093f\u092f\u092e / Second law”, “\u0924\u0943\u0924\u0940\u092f \u0928\u093f\u092f\u092e / Third law”, “\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902 / None of these”], “answerIdx”: 2, “explanation”: “\u0930\u0947\u0916\u0940\u092f \u0938\u0902\u0935\u0947\u0917 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u093e \u0938\u093f\u0926\u094d\u0927\u093e\u0928\u094d\u0924 \u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u0947 \u0924\u0943\u0924\u0940\u092f \u0917\u0924\u093f \u0928\u093f\u092f\u092e \u0915\u093e \u0939\u0940 \u0926\u0942\u0938\u0930\u093e \u0930\u0942\u092a \u0939\u0948\u0964 / The principle of conservation of linear momentum is another form of Newton’s third law of motion. \u200b”}, {“question”: “\u0926\u094b \u092a\u093f\u0902\u0921\u094b\u0902 \u0915\u0947 \u091f\u0915\u094d\u0915\u0930 \u0915\u0947 \u092a\u0939\u0932\u0947 \u0914\u0930 \u092c\u093e\u0926 \u0915\u093e \u0915\u0941\u0932 \u0938\u0902\u0935\u0947\u0917 \u092c\u0930\u093e\u092c\u0930 \u0930\u0939\u0924\u093e \u0939\u0948, \u092f\u0939 \u0938\u092e\u0940\u0915\u0930\u0923 \u0915\u094d\u092f\u093e \u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948? / The total momentum of two bodies before and after collision remains equal, what does this equation represent?”, “options”: [“m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2”, “F = ma”, “\\omega = 2\\pi n”, “F = kx”], “answerIdx”: 0, “explanation”: “\u0930\u0947\u0916\u0940\u092f \u0938\u0902\u0935\u0947\u0917 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930, \u091f\u0915\u094d\u0915\u0930 \u0938\u0947 \u092a\u0939\u0932\u0947 \u0915\u093e \u0938\u0902\u0935\u0947\u0917 \u0914\u0930 \u091f\u0915\u094d\u0915\u0930 \u0915\u0947 \u092c\u093e\u0926 \u0915\u093e \u0938\u0902\u0935\u0947\u0917 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0947 m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2 \u0926\u094d\u0935\u093e\u0930\u093e \u0926\u0930\u094d\u0936\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 / According to the conservation of linear momentum, the momentum before collision and after collision are equal, represented by m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2. \u200b”}, {“question”: “\u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u091f\u0915\u094d\u0915\u0930 \u092e\u0947\u0902 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e (Kinetic Energy) \u090f\u0935\u0902 \u0938\u0902\u0935\u0947\u0917 \u0926\u094b\u0928\u094b\u0902 \u0938\u0902\u0930\u0915\u094d\u0937\u093f\u0924 \u0930\u0939\u0924\u0947 \u0939\u0948\u0902? / In which type of collision are both kinetic energy and momentum conserved?”, “options”: [“\u0905\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u091f\u0915\u094d\u0915\u0930 / Inelastic collision”, “\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u091f\u0915\u094d\u0915\u0930 / Elastic collision”, “\u092a\u0942\u0930\u094d\u0923\u0924\u0903 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u091f\u0915\u094d\u0915\u0930 / Perfectly inelastic collision”, “\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902 / None of these”], “answerIdx”: 1, “explanation”: “\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 (Elastic) \u091f\u0915\u094d\u0915\u0930 \u092e\u0947\u0902 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u090f\u0935\u0902 \u0938\u0902\u0935\u0947\u0917 \u0926\u094b\u0928\u094b\u0902 \u0938\u0902\u0930\u0915\u094d\u0937\u093f\u0924 \u0930\u0939\u0924\u0947 \u0939\u0948\u0902 \u0924\u0925\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u0917\u0941\u0923\u093e\u0902\u0915 (e) \u0915\u093e \u092e\u093e\u0928 1 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 / In an elastic collision, both kinetic energy and momentum are conserved, and the value of the coefficient of restitution (e) is 1. \u200b”}, {“question”: “\u092a\u0942\u0930\u094d\u0923\u0924\u0903 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u091f\u0915\u094d\u0915\u0930 (Perfectly Inelastic Collision) \u092e\u0947\u0902 \u091f\u0915\u094d\u0915\u0930 \u0915\u0947 \u092c\u093e\u0926 \u092a\u093f\u0902\u0921\u094b\u0902 \u0915\u0940 \u0915\u094d\u092f\u093e \u0938\u094d\u0925\u093f\u0924\u093f \u0939\u094b\u0924\u0940 \u0939\u0948? / What is the status of the bodies after a perfectly inelastic collision?”, “options”: [“\u0935\u0947 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0938\u092e\u093e\u0928 \u0935\u0947\u0917 \u0938\u0947 \u091a\u0932\u0924\u0947 \u0939\u0948\u0902\u0964 / They move in opposite directions with the same velocity.”, “\u0935\u0947 \u090f\u0915-\u0926\u0942\u0938\u0930\u0947 \u0938\u0947 \u091a\u093f\u092a\u0915 \u091c\u093e\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u090f\u0915 \u0939\u0940 \u0935\u0947\u0917 \u0938\u0947 \u091a\u0932\u0924\u0947 \u0939\u0948\u0902\u0964 / They stick to each other and move with a single velocity.”, “\u0909\u0928\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092c\u0922\u093c \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 / Their kinetic energy increases.”, “\u0935\u0947 \u0938\u094d\u0925\u093f\u0930 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 / They become stationary.”], “answerIdx”: 1, “explanation”: “\u092a\u0942\u0930\u094d\u0923\u0924\u0903 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u093e\u0938\u094d\u0925 \u091f\u0915\u094d\u0915\u0930 \u092e\u0947\u0902 \u092a\u093f\u0902\u0921 \u091f\u0915\u094d\u0915\u0930 \u0915\u0947 \u092c\u093e\u0926 \u090f\u0915-\u0926\u0942\u0938\u0930\u0947 \u0938\u0947 \u091a\u093f\u092a\u0915 \u091c\u093e\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u090f\u0915 \u0939\u0940 \u0935\u0947\u0917 \u0938\u0947 \u091a\u0932\u0928\u0947 \u0932\u0917\u0924\u0947 \u0939\u0948\u0902\u0964 \u0907\u0938\u092e\u0947\u0902 K.E. \u0938\u0902\u0930\u0915\u094d\u0937\u093f\u0924 \u0928\u0939\u0940\u0902 \u0930\u0939\u0924\u093e\u0964 / In a perfectly inelastic collision, the bodies stick to each other after the collision and start moving with the same velocity. K.E. is not conserved in this. \u200b”}, {“question”: “\u0906\u0935\u0947\u0917 (Impulse) \u0915\u093f\u0938\u0915\u0947 \u0917\u0941\u0923\u0928\u092b\u0932 \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0924\u093e \u0939\u0948? / Impulse is equal to the product of what?”, “options”: [“\u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \\times \u0935\u0947\u0917 / Mass \\times Velocity”, “\u092c\u0932 \\times \u0938\u092e\u092f-\u0905\u0928\u094d\u0924\u0930\u093e\u0932 / Force \\times Time interval”, “\u092c\u0932 \\times \u0926\u0942\u0930\u0940 / Force \\times Distance”, “\u0935\u0947\u0917 / \u0938\u092e\u092f / Velocity / Time”], “answerIdx”: 1, “explanation”: “\u091c\u092c \u0915\u094b\u0908 \u092c\u0921\u093c\u093e \u092c\u0932 \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u0925\u094b\u0921\u093c\u0947 \u0938\u092e\u092f \u0915\u0947 \u0932\u093f\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948, \u0924\u094b \u092c\u0932 \u0924\u0925\u093e \u0938\u092e\u092f-\u0905\u0928\u094d\u0924\u0930\u093e\u0932 \u0915\u0947 \u0917\u0941\u0923\u0928\u092b\u0932 \u0915\u094b \u0906\u0935\u0947\u0917 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 \u0906\u0935\u0947\u0917 = \u0938\u0902\u0935\u0947\u0917 \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928\u0964 / When a large force acts on an object for a short time, the product of force and time interval is called impulse. Impulse = Change in momentum. \u200b”}, {“question”: “\u0906\u0935\u0947\u0917 \u0915\u093e \u092e\u093e\u0924\u094d\u0930\u0915 \u0915\u094d\u092f\u093e \u0939\u0948? / What is the unit of impulse?”, “options”: [“\u0928\u094d\u092f\u0942\u091f\u0928 / Newton”, “\u091c\u0942\u0932 / Joule”, “\u0928\u094d\u092f\u0942\u091f\u0928 \u0938\u0947\u0915\u0947\u0923\u094d\u0921 (Ns) / Newton second (Ns)”, “\u0935\u093e\u091f / Watt”], “answerIdx”: 2, “explanation”: “\u0906\u0935\u0947\u0917 \u0915\u093e \u092e\u093e\u0924\u094d\u0930\u0915 \u0928\u094d\u092f\u0942\u091f\u0928 \u0938\u0947\u0915\u0947\u0923\u094d\u0921 (Ns) \u0939\u0948 \u0924\u0925\u093e \u092f\u0939 \u090f\u0915 \u0938\u0926\u093f\u0936 \u0930\u093e\u0936\u093f \u0939\u0948 \u091c\u093f\u0938\u0915\u0940 \u0926\u093f\u0936\u093e \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 / The unit of impulse is Newton second (Ns) and it is a vector quantity whose direction is along the direction of the force. \u200b”}, {“question”: “\u0915\u092a\u0921\u093c\u093e \u0938\u0941\u0916\u093e\u0928\u0947 \u0915\u0940 \u092e\u0936\u0940\u0928 \u0914\u0930 \u0926\u0942\u0927 \u0938\u0947 \u092e\u0915\u094d\u0916\u0928 \u0928\u093f\u0915\u093e\u0932\u0928\u0947 \u0915\u0940 \u092e\u0936\u0940\u0928 \u0915\u093f\u0938 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u0940 \u0939\u0948? / The cloth dryer machine and milk cream separator machine work on which principle?”, “options”: [“\u0905\u092d\u093f\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 / Centripetal force”, “\u0905\u092a\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 / Centrifugal force”, “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 / Frictional force”, “\u092c\u0932-\u0906\u0918\u0942\u0930\u094d\u0923 / Torque”], “answerIdx”: 1, “explanation”: “\u0905\u092a\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 (Centrifugal force) \u090f\u0915 \u091b\u0926\u094d\u092e \u092f\u093e \u091c\u0921\u093c\u0924\u094d\u0935\u0940\u092f \u092c\u0932 \u0939\u0948\u0964 \u0915\u092a\u0921\u093c\u093e \u0938\u0941\u0916\u093e\u0928\u0947 \u0915\u0940 \u092e\u0936\u0940\u0928, \u0926\u0942\u0927 \u0938\u0947 \u092e\u0915\u094d\u0916\u0928 \u0928\u093f\u0915\u093e\u0932\u0928\u0947 \u0915\u0940 \u092e\u0936\u0940\u0928 \u0907\u0938\u0940 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 / Centrifugal force is a pseudo or inertial force. The washing machine dryer and cream separator work on this principle. \u200b”}, {“question”: “\u0935\u0943\u0924\u094d\u0924\u0940\u092f \u092e\u093e\u0930\u094d\u0917 \u092a\u0930 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u0915\u0940 \u0913\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0947 \u092c\u0932 \u0915\u094b \u0915\u094d\u092f\u093e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902? / What is the force acting towards the center on a circular path called?”, “options”: [“\u0905\u092a\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 / Centrifugal force”, “\u0905\u092d\u093f\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 / Centripetal force”, “\u0917\u0941\u0930\u0941\u0924\u094d\u0935\u093e\u0915\u0930\u094d\u0937\u0923 \u092c\u0932 / Gravitational force”, “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 / Frictional force”], “answerIdx”: 1, “explanation”: “\u091c\u092c \u0915\u094b\u0908 \u0935\u0938\u094d\u0924\u0941 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u092e\u093e\u0930\u094d\u0917 \u092a\u0930 \u091a\u0932\u0924\u0940 \u0939\u0948, \u0924\u094b \u0909\u0938 \u092a\u0930 \u090f\u0915 \u092c\u0932 \u0935\u0943\u0924\u094d\u0924 \u0915\u0947 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u0915\u0940 \u0913\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0947 \u0905\u092d\u093f\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 (F = \\frac{mv^2}{r}) \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 / When an object moves on a circular path, a force acts towards the center of the circle, which is called centripetal force (F = \\frac{mv^2}{r}). \u200b”}, {“question”: “\u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u090f\u0915 \u092a\u093f\u0923\u094d\u0921 \u0915\u094b \u0915\u093f\u0938\u0940 \u0905\u0915\u094d\u0937 \u0915\u0947 \u092a\u0930\u093f\u0924\u0903 \u0918\u0941\u092e\u093e\u0928\u0947 \u0915\u0940 \u092a\u094d\u0930\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u094b \u0915\u094d\u092f\u093e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902? / What is the tendency of a force to rotate a body about an axis called?”, “options”: [“\u0906\u0935\u0947\u0917 / Impulse”, “\u0938\u0902\u0935\u0947\u0917 / Momentum”, “\u092c\u0932-\u0906\u0918\u0942\u0930\u094d\u0923 / Moment of force (Torque)”, “\u0915\u093e\u0930\u094d\u092f / Work”], “answerIdx”: 2, “explanation”: “\u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u090f\u0915 \u092a\u093f\u0923\u094d\u0921 \u0915\u094b \u090f\u0915 \u0905\u0915\u094d\u0937 \u0915\u0947 \u092a\u0930\u093f\u0924\u0903 \u0918\u0941\u092e\u093e\u0928\u0947 \u0915\u0940 \u092a\u094d\u0930\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u094b \u092c\u0932-\u0906\u0918\u0942\u0930\u094d\u0923 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 \u0907\u0938\u0915\u093e \u092e\u093e\u0924\u094d\u0930\u0915 \u0928\u094d\u092f\u0942\u091f\u0928 \u092e\u0940\u091f\u0930 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 / The tendency of a force to rotate a body about an axis is called the moment of force (torque). Its unit is Newton meter. \u200b”}, {“question”: “\u0938\u0930\u0932 \u092e\u0936\u0940\u0928 (Simple Machine) \u0915\u093f\u0938 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u0940 \u0939\u0948? / On which principle does a simple machine work?”, “options”: [“\u0938\u0902\u0935\u0947\u0917 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 / Conservation of momentum”, “\u092c\u0932-\u0906\u0918\u0942\u0930\u094d\u0923 \u0915\u0947 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u092a\u0930 / Principle of moment of force”, “\u0905\u092a\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u0940\u092f \u092c\u0932 / Centrifugal force”, “\u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u0947 \u0917\u0924\u093f \u0928\u093f\u092f\u092e / Newton’s laws of motion”], “answerIdx”: 1, “explanation”: “\u0938\u0930\u0932 \u092e\u0936\u0940\u0928 \u092c\u0932-\u0906\u0918\u0942\u0930\u094d\u0923 \u0915\u0947 \u0938\u093f\u0926\u094d\u0927\u093e\u0902\u0924 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 \u092f\u0939 \u090f\u0915 \u0910\u0938\u0940 \u092f\u0941\u0915\u094d\u0924\u093f \u0939\u0948 \u091c\u093f\u0938\u0938\u0947 \u0938\u0941\u0935\u093f\u0927\u093e\u091c\u0928\u0915 \u092c\u093f\u0928\u094d\u0926\u0941 \u092a\u0930 \u092c\u0932 \u0932\u0917\u093e\u0915\u0930 \u092d\u093e\u0930 \u0909\u0920\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 / Simple machines work on the principle of moment of force. It is a device by which a load is lifted by applying force at a convenient point. \u200b”}, {“question”: “\u0909\u0924\u094d\u0924\u094b\u0932\u0915 (Lever) \u092e\u0947\u0902 \u0915\u093f\u0924\u0928\u0947 \u092e\u0941\u0916\u094d\u092f \u092c\u093f\u0928\u094d\u0926\u0941 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902? / How many main points are there in a lever?”, “options”: [“\u0926\u094b / Two”, “\u0924\u0940\u0928 / Three”, “\u091a\u093e\u0930 / Four”, “\u092a\u093e\u0902\u091a / Five”], “answerIdx”: 1, “explanation”: “\u0909\u0924\u094d\u0924\u094b\u0932\u0915 \u092e\u0947\u0902 \u0924\u0940\u0928 \u092c\u093f\u0928\u094d\u0926\u0941 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u2014 \u0906\u0932\u0902\u092c (Fulcrum), \u0906\u092f\u093e\u0938 (Effort) \u0914\u0930 \u092d\u093e\u0930 (Load)\u0964 / There are three points in a lever\u2014 Fulcrum, Effort, and Load. \u200b”}, {“question”: “\u0915\u0948\u0902\u091a\u0940, \u092a\u093f\u0932\u093e\u0936, \u0914\u0930 \u0939\u0948\u0902\u0921 \u092a\u092e\u094d\u092a \u0915\u093f\u0938 \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915 \u0939\u0948\u0902? / Scissors, pliers, and hand pump belong to which class of lever?”, “options”: [“\u092a\u094d\u0930\u0925\u092e \u0936\u094d\u0930\u0947\u0923\u0940 / First class”, “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 / Second class”, “\u0924\u0943\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 / Third class”, “\u091a\u0924\u0941\u0930\u094d\u0925 \u0936\u094d\u0930\u0947\u0923\u0940 / Fourth class”], “answerIdx”: 0, “explanation”: “\u092a\u094d\u0930\u0925\u092e \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915\u094b\u0902 \u092e\u0947\u0902 \u0906\u0932\u0902\u092c F, \u0906\u092f\u093e\u0938 E \u0924\u0925\u093e \u092d\u093e\u0930 W \u0915\u0947 \u092c\u0940\u091a \u092e\u0947\u0902 \u0938\u094d\u0925\u093f\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0915\u0948\u0902\u091a\u0940, \u092a\u093f\u0932\u093e\u0936, \u0939\u0948\u0902\u0921 \u092a\u092e\u094d\u092a \u0907\u0938\u0915\u0947 \u0909\u0926\u093e\u0939\u0930\u0923 \u0939\u0948\u0902\u0964 / In first-class levers, the fulcrum F lies between the effort E and the load W. Scissors, pliers, and hand pumps are examples. \u200b”}, {“question”: “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915 \u0915\u093e \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0932\u093e\u092d (Mechanical Advantage) \u0938\u0926\u0948\u0935 \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0924\u093e \u0939\u0948? / What is the mechanical advantage of a second-class lever always?”, “options”: [“\u090f\u0915 \u0938\u0947 \u0915\u092e / Less than one”, “\u090f\u0915 \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 / Equal to one”, “\u090f\u0915 \u0938\u0947 \u0905\u0927\u093f\u0915 / More than one”, “\u0936\u0942\u0928\u094d\u092f / Zero”], “answerIdx”: 2, “explanation”: “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915 \u092e\u0947\u0902 \u0906\u0932\u0902\u092c F \u0935 \u0906\u092f\u093e\u0938 E \u0915\u0947 \u092c\u0940\u091a \u092d\u093e\u0930 W \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0932\u093e\u092d \u0938\u0926\u0948\u0935 \u090f\u0915 \u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u094b\u0924\u093e \u0939\u0948 \u091c\u0948\u0938\u0947 \u0928\u0940\u0902\u092c\u0942 \u0928\u093f\u091a\u094b\u0921\u093c\u0928\u0947 \u0915\u0940 \u092e\u0936\u0940\u0928\u0964 / In a second-class lever, the load W is between the fulcrum F and the effort E. Its mechanical advantage is always greater than one, like a lemon squeezer. \u200b”}, {“question”: “\u091a\u093f\u092e\u091f\u093e \u0914\u0930 \u092e\u0928\u0941\u0937\u094d\u092f \u0915\u093e \u0939\u093e\u0925 \u0915\u093f\u0938 \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915 \u0915\u093e \u0909\u0926\u093e\u0939\u0930\u0923 \u0939\u0948\u0902? / Tongs and human hand are examples of which class of lever?”, “options”: [“\u092a\u094d\u0930\u0925\u092e \u0936\u094d\u0930\u0947\u0923\u0940 / First class”, “\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 / Second class”, “\u0924\u0943\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 / Third class”, “\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902 / None of these”], “answerIdx”: 2, “explanation”: “\u0924\u0943\u0924\u0940\u092f \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u0909\u0924\u094d\u0924\u094b\u0932\u0915\u094b\u0902 \u092e\u0947\u0902 \u0906\u0932\u0902\u092c F \u0914\u0930 \u092d\u093e\u0930 W \u0915\u0947 \u092c\u0940\u091a \u092e\u0947\u0902 \u0906\u092f\u093e\u0938 E \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0932\u093e\u092d \u0938\u0926\u0948\u0935 \u090f\u0915 \u0938\u0947 \u0915\u092e \u0939\u094b\u0924\u093e \u0939\u0948 \u091c\u0948\u0938\u0947 \u091a\u093f\u092e\u091f\u093e, \u092e\u0928\u0941\u0937\u094d\u092f \u0915\u093e \u0939\u093e\u0925\u0964 / In third-class levers, the effort E is between the fulcrum F and the load W. Its mechanical advantage is always less than one, like tongs, human hand. \u200b”}, {“question”: “\u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0935\u0939 \u092c\u093f\u0928\u094d\u0926\u0941 \u091c\u0939\u093e\u0901 \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0938\u092e\u0938\u094d\u0924 \u092d\u093e\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948, \u0915\u094d\u092f\u093e \u0915\u0939\u0932\u093e\u0924\u093e \u0939\u0948? / What is that point of an object called where the entire weight of the object acts?”, “options”: [“\u0906\u0932\u0902\u092c / Fulcrum”, “\u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 / Centre of Gravity”, “\u092e\u0927\u094d\u092f \u092c\u093f\u0928\u094d\u0926\u0941 / Midpoint”, “\u0905\u0915\u094d\u0937 / Axis”], “answerIdx”: 1, “explanation”: “\u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u0935\u0939 \u092c\u093f\u0928\u094d\u0926\u0941 \u0939\u0948 \u091c\u0939\u093e\u0901 \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0938\u092e\u0938\u094d\u0924 \u092d\u093e\u0930 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948, \u091a\u093e\u0939\u0947 \u0935\u0938\u094d\u0924\u0941 \u091c\u093f\u0938 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0930\u0916\u0940 \u091c\u093e\u090f\u0964 / The center of gravity of an object is that point where the entire weight of the object acts, regardless of the position in which the object is placed. \u200b”}, {“question”: “\u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u093f\u0924\u0928\u0947 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902? / How many types of equilibrium are there?”, “options”: [“\u0926\u094b / Two”, “\u0924\u0940\u0928 / Three”, “\u091a\u093e\u0930 / Four”, “\u092a\u093e\u0901\u091a / Five”], “answerIdx”: 1, “explanation”: “\u0938\u0902\u0924\u0941\u0932\u0928 \u0924\u0940\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u2014 \u0938\u094d\u0925\u093e\u092f\u0940 (Stable), \u0905\u0938\u094d\u0925\u093e\u092f\u0940 (Unstable) \u0924\u0925\u093e \u0909\u0926\u093e\u0938\u0940\u0928 (Neutral)\u0964 / There are three types of equilibrium\u2014 Stable, Unstable, and Neutral. \u200b”}, {“question”: “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 (Friction Force) \u0939\u092e\u0947\u0936\u093e \u0915\u093f\u0938 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948? / In which direction does the frictional force always act?”, “options”: [“\u0917\u0924\u093f \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 / In the direction of motion”, “\u0917\u0924\u093f \u0915\u0940 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 / In the opposite direction of motion”, “\u0932\u092e\u094d\u092c\u0935\u0924\u094d \u090a\u092a\u0930 \u0915\u0940 \u0913\u0930 / Vertically upwards”, “\u0915\u093f\u0938\u0940 \u092d\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0928\u0939\u0940\u0902 / In no direction”], “answerIdx”: 1, “explanation”: “\u0918\u0930\u094d\u0937\u0923 \u090f\u0915 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u092c\u0932 \u0939\u0948, \u091c\u094b \u0938\u0926\u0948\u0935 \u0917\u0924\u093f \u0915\u0940 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0932\u0917\u0924\u093e \u0939\u0948 \u0914\u0930 \u092a\u094d\u0930\u092f\u0941\u0915\u094d\u0924 \u092c\u0932\u094b\u0902 \u0915\u093e \u0935\u093f\u0930\u094b\u0927 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 / Friction is a type of force that always acts in the opposite direction of motion and opposes the applied forces. \u200b”}, {“question”: “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u093e \u092e\u093e\u0928 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938 \u092a\u0930 \u0928\u093f\u0930\u094d\u092d\u0930 \u0915\u0930\u0924\u093e \u0939\u0948? / The value of frictional force depends on which of the following?”, “options”: [“\u0938\u0924\u0939\u094b\u0902 \u0915\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u092b\u0932 \u092a\u0930 / On the area of surfaces”, “\u0938\u0924\u0939\u094b\u0902 \u0915\u0940 \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u092a\u0930 / On the nature of surfaces”, “\u0935\u0938\u094d\u0924\u0941 \u0915\u0947 \u0906\u0915\u093e\u0930 \u092a\u0930 / On the shape of the object”, “\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902 / None of these”], “answerIdx”: 1, “explanation”: “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u093e \u092e\u093e\u0928 \u0938\u0924\u0939\u094b\u0902 \u0915\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u092b\u0932 \u092a\u0930 \u0928\u093f\u0930\u094d\u092d\u0930 \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u093e \u0939\u0948, \u092f\u0939 \u0938\u0924\u0939\u094b\u0902 \u0915\u0940 \u092a\u094d\u0930\u0915\u0943\u0924\u093f (\u091a\u093f\u0915\u0928\u093e \u092f\u093e \u0916\u0941\u0930\u0926\u0930\u093e) \u092a\u0930 \u0928\u093f\u0930\u094d\u092d\u0930 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 / The value of frictional force does not depend on the area of the surfaces; it depends on the nature of the surfaces (smooth or rough). \u200b”}, {“question”: “\u0918\u0930\u094d\u0937\u0923 \u0915\u0947 \u0905\u0927\u0940\u0928 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u0948\u0938\u093e \u0939\u094b\u0924\u093e \u0939\u0948? / What is the nature of work done under friction?”, “options”: [“\u0927\u0928\u093e\u0924\u094d\u092e\u0915 / Positive”, “\u090b\u0923\u093e\u0924\u094d\u092e\u0915 / Negative”, “\u0936\u0942\u0928\u094d\u092f / Zero”, “\u0905\u0928\u0928\u094d\u0924 / Infinite”], “answerIdx”: 1, “explanation”: “\u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0939\u092e\u0947\u0936\u093e \u0917\u0924\u093f \u0915\u0940 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0932\u0917\u0924\u093e \u0939\u0948, \u0907\u0938\u0932\u093f\u090f \u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u0947 \u0905\u0927\u0940\u0928 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0939\u092e\u0947\u0936\u093e \u090b\u0923\u093e\u0924\u094d\u092e\u0915 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 / Frictional force always acts opposite to the direction of motion, so the work done under friction is always negative. \u200b”}, {“question”: “\u0918\u0930\u094d\u0937\u0923 \u0917\u0941\u0923\u093e\u0902\u0915 (\\mu) \u0915\u093e \u092e\u093e\u0928 \u0915\u093f\u0928\u0915\u0947 \u092c\u0940\u091a \u0939\u094b\u0924\u093e \u0939\u0948? / Between which values does the coefficient of friction (\\mu) lie?”, “options”: [“-1 \u0938\u0947 0 \u0915\u0947 \u092c\u0940\u091a / Between -1 and 0”, “0 \u0938\u0947 1 \u0915\u0947 \u092c\u0940\u091a / Between 0 and 1”, “1 \u0938\u0947 10 \u0915\u0947 \u092c\u0940\u091a / Between 1 and 10”, “\u0907\u0938\u0915\u093e \u0915\u094b\u0908 \u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u092e\u093e\u0928 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e / It has no fixed value”], “answerIdx”: 1, “explanation”: “\u0918\u0930\u094d\u0937\u0923 \u0917\u0941\u0923\u093e\u0902\u0915 \u0915\u093e \u092e\u093e\u0928 \u0939\u092e\u0947\u0936\u093e 0 \u0938\u0947 1 \u0915\u0947 \u092c\u0940\u091a \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u090f\u0915 \u092e\u093e\u0924\u094d\u0930\u0915\u0939\u0940\u0928 \u0914\u0930 \u0935\u093f\u092e\u093e\u0939\u0940\u0928 \u0930\u093e\u0936\u093f \u0939\u0948 (\\mu = F/R)\u0964 / The value of the coefficient of friction always lies between 0 and 1. It is a unitless and dimensionless quantity (\\mu = F/R). \u200b”}, {“question”: “\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u0918\u0930\u094d\u0937\u0923 \u0915\u093e \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u092c\u0938\u0947 \u0915\u092e \u092c\u0932 \u092e\u093e\u0928 \u0930\u0916\u0924\u093e \u0939\u0948? / Which of the following types of friction has the least force value?”, “options”: [“\u0938\u094d\u0925\u0948\u0924\u093f\u0915 \u0918\u0930\u094d\u0937\u0923 / Static friction”, “\u0938\u0940\u092e\u093e\u0902\u0924 \u0918\u0930\u094d\u0937\u0923 / Limiting friction”, “\u0938\u0930\u094d\u092a\u0940 \u0918\u0930\u094d\u0937\u0923 / Sliding friction”, “\u0932\u094b\u091f\u0928\u093f\u0915 \u0918\u0930\u094d\u0937\u0923 / Rolling friction”], “answerIdx”: 3, “explanation”: “\u0918\u0930\u094d\u0937\u0923\u094b\u0902 \u0915\u093e \u0915\u094d\u0930\u092e \u0939\u0948: \u0938\u094d\u0925\u0948\u0924\u093f\u0915 \u0918\u0930\u094d\u0937\u0923 > \u0938\u0930\u094d\u092a\u0940 \u0918\u0930\u094d\u0937\u0923 > \u0932\u094b\u091f\u0928\u093f\u0915 \u0918\u0930\u094d\u0937\u0923\u0964 \u0905\u0924\u0903 \u0932\u094b\u091f\u0928\u093f\u0915 \u0918\u0930\u094d\u0937\u0923 \u0915\u093e \u092e\u093e\u0928 \u0938\u092c\u0938\u0947 \u0915\u092e \u0939\u094b\u0924\u093e \u0939\u0948\u0964 / The order of friction is: Static friction > Sliding friction > Rolling friction. Therefore, rolling friction has the lowest value. \u200b”}, {“question”: “\u0918\u0930\u094d\u0937\u0923 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0928\u0937\u094d\u091f \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0940 \u090a\u0930\u094d\u091c\u093e \u0915\u093f\u0938 \u0930\u0942\u092a \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u0940 \u0939\u0948? / Into what form does the energy lost due to friction change?”, “options”: [“\u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u090a\u0930\u094d\u091c\u093e / Chemical energy”, “\u0924\u093e\u092a\u0940\u092f \u090a\u0930\u094d\u091c\u093e / Thermal (Heat) energy”, “\u0928\u093e\u092d\u093f\u0915\u0940\u092f \u090a\u0930\u094d\u091c\u093e / Nuclear energy”, “\u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e / Potential energy”], “answerIdx”: 1, “explanation”: “\u0918\u0930\u094d\u0937\u0923 \u0915\u0947 \u0915\u093e\u0930\u0923 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u092a\u0942\u0930\u094d\u0923 \u0915\u094d\u0937\u092f \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e, \u092c\u0932\u094d\u0915\u093f \u0935\u0939 \u0924\u093e\u092a\u0940\u092f \u090a\u0930\u094d\u091c\u093e (Heat energy) \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 / Energy is not completely destroyed due to friction, rather it changes into thermal energy (heat energy). \u200b”}, {“question”: “\u0938\u094d\u0925\u093e\u092f\u0940 \u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u0947 \u0932\u093f\u090f \u0917\u0941\u0930\u0941\u0924\u094d\u0935-\u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f \u0915\u0948\u0938\u0940 \u0939\u094b\u0928\u0940 \u091a\u093e\u0939\u093f\u090f? / What should be the position of the center of gravity for stable equilibrium?”, “options”: [“\u0905\u0927\u093f\u0915\u093e\u0927\u093f\u0915 \u090a\u092a\u0930 / As high as possible”, “\u0905\u0927\u093f\u0915\u093e\u0927\u093f\u0915 \u0928\u0940\u091a\u0947 / As low as possible”, “\u0906\u0927\u093e\u0930 \u0915\u0947 \u092c\u093e\u0939\u0930 / Outside the base”, “\u0905\u0928\u093f\u0936\u094d\u091a\u093f\u0924 / Uncertain”], “answerIdx”: 1, “explanation”: “\u0938\u094d\u0925\u093e\u092f\u0940 \u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u0940 \u0936\u0930\u094d\u0924 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930, \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0917\u0941\u0930\u0941\u0924\u094d\u0935-\u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u0905\u0927\u093f\u0915\u093e\u0927\u093f\u0915 \u0928\u0940\u091a\u0947 \u0939\u094b\u0928\u093e \u091a\u093e\u0939\u093f\u090f \u0924\u0925\u093e \u0906\u0927\u093e\u0930 \u0938\u0947 \u090a\u0930\u094d\u0927\u094d\u0935\u093e\u0927\u0930 \u0930\u0947\u0916\u093e \u0917\u0941\u091c\u0930\u0928\u0940 \u091a\u093e\u0939\u093f\u090f\u0964 / According to the conditions of stable equilibrium, the center of gravity of the object should be as low as possible and the vertical line must pass through the base.”}]; {“@context”: “https://schema.org”, “@graph”: [{“@type”: “Quiz”, “name”: “\u0917\u0924\u093f Mock Test”, “description”: “Take this free \u0917\u0924\u093f mock test with 25 MCQs and detailed answers.”, “about”: {“@type”: “Thing”, “name”: “\u0917\u0924\u093f”}, “educationalLevel”: “Intermediate”, “educationalUse”: “Mock Test”, “learningResourceType”: “Quiz”, “inLanguage”: “hi-IN”, “isAccessibleForFree”: true, “author”: {“@type”: “Organization”, “name”: “StudyHUB”, “url”: “https://studyhub.net.in”}, “publisher”: {“@type”: “Organization”, “name”: “StudyHUB”, “url”: “https://studyhub.net.in”}}, {“@type”: “BreadcrumbList”, “itemListElement”: [{“@type”: “ListItem”, “position”: 1, “name”: “Home”, “item”: “https://studyhub.net.in”}, {“@type”: “ListItem”, “position”: 2, “name”: “Quizzes”, “item”: “https://studyhub.net.in/quiz/”}, {“@type”: “ListItem”, “position”: 3, “name”: “\u0917\u0924\u093f”, “item”: “https://studyhub.net.in/quiz//”}]}]}No schema found.