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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 >>

1 2 3 4 5  Next >>  Page 1 of 9 pages (43 Objective Questions)

1. Work done in raising a box depends on


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


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3. A 50kg man with 20kg load on his head climbs up 20 steps of 0.25m height each. The work done in climbing is . [JIPMER 2002]


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4. A spring when stretched by 2 mm its potential energy becomes 4 J. If it is stretched by 10 mm, its potential energy is equal to. [BCECE 2003]


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5. 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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