When the observer moves towards the stationary source with velocity, 
, the apparent frequency of emitted note is 
. When the observer moves away from the source with velocity 
, the apparent frequency is 
. If 
is the velocity of sound in air and 
then 
?
Text Solution
Verified by ExpertsThe correct answer is:
B
When the observer moves towards the stationary source, apparent frequency of emitted note,
When the observer moves away from the stationary source, apparent frequency of emitted note
Dividing eqn. (i) by eqn. (ii), we get
(given) 
or 
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