Assertion :Every vibrating body is a source of sound Reason: All sounds are audible

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
We know that the sound is produced by the vibration of particles in a medium. Thus, source of sound is vibration.
All sounds are not audible by the human ear. The audible range of the human ear is $20 H z$ to $20 k H z$ . Thus, the sound of below $20 H z$ and above $20 k H z$ is not audible for human ear.
Thus, assertion is correct but reason is incorrect.

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