> Q. Assertion: 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 and the amplitude of forced vibration, is maximum. Reason: The amplitude of forced vibrations of a body increases with an increase in the frequency of the externally impressed periodic force. – LIVE ANSWER TODAY

Q. Assertion: 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 and the amplitude of forced vibration, is maximum. Reason: The amplitude of forced vibrations of a body increases with an increase in the frequency of the externally impressed periodic force.

In This post you will get answer of Q.
Assertion: 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 and the amplitude of forced vibration, is maximum. Reason: The amplitude of forced vibrations of a body increases with an increase in the frequency of the externally impressed periodic force.

Solution:

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Resonance occurs when the frequency of the applied force becomes nearly equal to the natural frequency of vibration of the body.

During resonance the amplitude of the forced vibration reaches its maximum value.

So, if we increase the frequency of the externally impressed periodic force, the amplitude of the forced vibration does not increase but it decreases.

So the given reason is false.

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