Sound WavesMedium
Question
A fixed source of sound emitting a certain frequency appears at fa when the observer is approaching the source with speed V0 and frequency fr when the observer recedes from the source with the same speed. The frequency of the source is :-
Options
A.
B.
C.
D.
Solution
fa = 
f .......(1)
fr =
f.........(2)
= 1 + 
and 
= 1 - 
then
= 2 ⇒ f = 
f .......(1)fr =
f.........(2) = 1 + and = 1 - then
= 2 ⇒ f = Create a free account to view solution
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