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 train with a frequency f . What will be the frequency heard by a pe

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. f(330+v)/330

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