Assertion (A): Doppler formula for sound wave is symmetric with respect of the speed of source a...

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Assertion (A): Doppler formula for sound wave is symmetric with respect of the speed of source and speed of observer.
Reason \( (\mathbf{R}) \) : Motion of source with respect to stationary observer is not equivalent to the motion of an observer with respect to stationary source.
(1) Both Assertion (A) and Reason (R) are True and the Reason (R) is a correct explanation of the Assertion (A).
(2) Both Assertion (A) and Reason (R) are True but Reason \( (R) \) is not a correct explanation of the Assertion (A).
(3) Assertion (A) is True but the Reason (R) is False.
(4) Assertion (A) is False but the Reason (R) is True.
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