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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. Which one of the following is not a conservative force . [Kerala PMT 2005]

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2. The decrease in the potential energy of a ball of mass 20 kg which falls from a height of 50 cm is. [AIIMS 1997]

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3. The energy which an e- acquires when accelerated through a potential difference of 1 volt is called . [UPSEAT 2000]

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4. When a spring is stretched by 2 cm, it stores 100 J of energy. If it is stretched further by 2 cm, the stored energy will be increased by . [Orissa JEE 2002]

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5. A spring of force constant 10 N/m has an initial stretch 0.20 m. In changing the stretch to 0.25 m, the increase in potential energy is about. [CPMT 1977]

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