Assertion :Doppler formula for sound wave is symmetric with respect to the speed of the source and speed of the observer. Reason: Motion of source with respect to stationary observer is not equivalent to the motion of an observer with respect to the stationary source

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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Assertion is incorrect but Reason are correct

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Solution

The correct option is D Assertion is incorrect but Reason are correct
Motion of source with respect to stationary observer is not equivalent to the motion of an observer with respect to the stationary source.
The doppler shifted frequency is given by: $f = f_{0} (\frac{c - v_{o}}{c + v_{s}})$
where, $v_{o}$ is velocity of observer
$v_{s}$ is velocity of source
Hence, doppler formula is not symmetric with respect to speed of source and speed of observer.

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