A wall is moving with velocity u and a source of sound frequency f moves with velocity same direction as shown Assuming that the

Question

A wall is moving with velocity u and a source of sound frequency f moves with velocity same direction as shown Assuming that the sound travels with a speed of 10u pick the right option or options A wavelength of incident sound is C wavelength of reflected sound is st u 2 S 19u 2f 18 B frequency of the incident sound is 19 D frequency of the reflected sound is 12f 19

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