A bus is moving with a velocity of 5 ms^...

A bus is moving with a velocity of `5 ms^(-1)` towards a huge wall. The driver sound a horn of frequency 165 Hz. If the speed of sound in air is `335 ms^(-1)`, the number of beats heard per second by a passenger inside the bus will be

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A car is moving with a velocity of 5 m//s towards huge wall. The driver sounds a horn of frequency 165 Hz . If the speed of sound in air is 335 m//s , the number of beats heard per second by the driver is

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