Two sound sources each emitting sound of wavelength 
are fixed some distance apart. A listener moves with a velocity u along the line joining the two sources. The number of beats heard by him per second is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
frequency heard by listener
n 1 = 
n 2 = 
beat frequency = n 2 – n 1 = 
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