A train with a frequency ‘f’. What will be the frequency heard by – McqOptions

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1.	A train with a frequency ‘f’. What will be the frequency heard by a person sitting in the train? Speed of the train is ‘v’.
A.	f
B.	f(330+v)/330
C.	fv/(330-v)
D.	fv/(330+v)
Answer» B.

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