Sound WavesMedium
Question
A sound wave of frequency ƒ 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 : -
Options
A.The number of wave striking the surface per second is 
B.The wavelength of reflected wave is 
C.The frequency of the reflected wave is 
D.The number of beats heard by a stationary listener to the left of the reflecting surface is 
Solution
No. of wave striking the surface f = f 
frequency of the reflected wave
f′ = f
Wavelength of the reflected wave
λ =
frequency of the reflected wave
f′ = f
Wavelength of the reflected wave
λ =
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