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physics objective Questions and Answers with explanation and solutions

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Physics - Work Energy power and collision Questions and Answer >>

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1. A man pushes a wall and fails to displace it. He does . [CPMT 1992]


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2. You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. In this process you take 5 seconds. The work done by you will depend upon . [MP PET 1993]


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3. A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to . [AIEEE 2004]


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4. When work is done on a body by an external force, its


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5. The work done against gravity in taking 10 kg mass at 1m height in 1sec will be . [RPMT 2000]


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