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Assertion : The concept of energy is central to Physics and expression for energy can be written for every physical system. Reason : Law of conservation of energy is not valid for all forces and for any kind of transformation between different forms of energy.

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Assertion : The concept of energy is central to Physics and expression for energy can be written for every physical system. Reason : Law of conservation of energy is not valid for all forces and for any kind of transformation between different forms of energy.






 
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