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Assertion(A) : A bullet is fired from a rifle. If the rifle recoils freely, the kinetic energy of rifle is less than that of the bullet
Reason(R) : In the case of rifle-bullet system, the law of conservation of Energy is not valid.

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A and R are true and R is the correct explanation of A

A and R are true and R is not the correct explanation of A

A is true and R is false

A is false and R is false

answer is C.

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Detailed Solution

If the rifle recoils freely, the kinetic energy of the rifle is less than that of the bullet because its mass is more. In the case of the rifle-bullet system, the law of conservation of energy is valid.

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