Assertion (A): Resonance is a special case of forced vibration in which the natural frequency of...

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Assertion (A): Resonance is a special case of forced vibration in which the natural frequency of vibration of the body is the same as the impressed frequency of external periodic force and the amplitude of forced vibration is maximum.
Reason (R): The amplitude of forced vibration of a body increases with an increase in the frequency of the externally impressed periodic force.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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