Two sources of sound 
and 
produce sound waves of same frequency 
. A listener is moving from source 
towards 
with a constant speed 
and he hears 
. The velocity of sound is 
. Then 
equals:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
JEE Main 2019
and 
But frequency,
or 
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