Assertion - Sound wave is an example of longitudinal wave.
Reason - In longitudinal waves, the constituents of the medium oscillate perpendicular to the direction of wave propagation.

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
A sound wave is an example of the longitudinal wave.
But in longitudinal waves, the constituents of the medium oscillate parallel to the direction of wave propagation. So sound wave is an example of longitudinal wave.

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