Sound WavesHard
Question
A sound wave of frequency f travels is horizontally to the right. If 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 persecond is f 
B.The wavelength of reflected wave is f 
C.The frequency of reflected wave is f 
D.The number of beats heard by a stationary listener to the left of the reflecting surface is 
Solution
Moving plane is like a observer. Therefore, number of waves encountered by moving plane,
f1 = f
Frequecy of reflective wave,
f2 = f1
Wavelength of reflected wave,
λ =
f1 = f
Frequecy of reflective wave,
f2 = f1
Wavelength of reflected wave,
λ =
Create a free account to view solution
View Solution FreeMore Sound Waves Questions
Two waves y1 = Acos(0.5 πx - 100πt) and y2 = Acos(0.46 πx - 92 πt)are travelling in a pipe placed al...A vibrating string of certain length l under a tension T resonates with a mode corresponding to the first overtone (thir...The amplitude of a wave represented by displacement equation y = sin ωt ± cos ωt will be :-...In brass the velocity of longitudinal wave is 100 times the velocity of the transverse wave. If Y = 1011 N/m2 then stres...In the experiment to determine the speed of sound using a resonance column,...