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A submarine (A) travelling at is being chased along the line of its velocity by another submarine (B) travelling at
B sends a sonar signal of
to detect A and receives a reflected sound of frequency
. The value of
is close to :
(Speed of sound in water )
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frequency of sound when source is moving towards the observer and observer is moving away from source -
- wherein
We have given that
Frequency received by A,
Frequency of the reflected sound is heard or received by
Option 1)
Option 2)
Option 3)
Option 4)