Directions : Each of these questions contains two statements, Asser...

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Directions : Each of these questions contains two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(c) Assertion is correct, reason is incorrect
(d) Assertion is incorrect, reason is correct.
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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