A bus is moving with a velocity of 5 m/s towards a huge wall. the driv – McqOptions

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1.	A bus is moving with a velocity of 5 m/s towards a huge wall. the driver sounds a horn of frequency 165 Hz. If the speed of sound in air is 355 m/s, the number of beats heard per second by a passenger on the bus will be [KCET 2001; BHU 2002]
A.	6
B.	5
C.	3
D.	4
Answer» C. 3

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