In the case of sound waves, wind is blowing from source to receiver with speed U w . Both the source and the receiver are stationary. If λ λ 0 is the original wavelength with no wind and V is speed of sound in air then the wavelength as received by the receiver is given by:
A
λ λ 0
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
If f 0 is frequency of source then in Δ Δ t time, it sends N = f 0 
t waves. These are now contained in distance (V + U w ) Δ Δ t.
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