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A sound wave of frequency f travels hori...

A sound wave of frequency `f` travels horizontally to the right. It is reflected from a large vertical plane surface moving to left with a speed `v`. The speed of sound in medium is `C`

A

Thee number of wave striking the surface per second is `f((v+c))/(c)`

B

the wavelength of reflected wave is `(c(c-v))/(f(c+v))`

C

The frequency of reflected wave is `(f(c+v))/(c-v)`

D

The number of beats heard by a stationary listener to the left of the reflecting surface is `(vf)/(c-v)`

Text Solution

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The correct Answer is:
A, B, C
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