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Resonance

Which one of ...

Question

Which one of them is correct about resonance?

A

External periodic force is not required

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B

External periodic force is required

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C

The amplitude of vibration is very small

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D

The vibration of the body are not in phase

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Solution

The correct option is B
External periodic force is required

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Similar questions

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 of external periodic force 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.

Q. The periodic vibrations of a body of constant amplitude in the absence of any external force on it are called

Q. The periodic vibrations of a body of decreasing amplitude in the presence of resistive force on it are called

Q. The periodic vibrations of a body of decreasing amplitude with a resistive force are called.

The periodic vibrations of a body in the absence of any external force is called:

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