The engine of a train sound a whistle at...

The engine of a train sound a whistle at frequency `v`, the frequency heard by a passenger is

`gtv`

`ltv`

`=1/v`

`=v`

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Two trains are moving towards each other at speeds of 72kmh^-1 and 54 kmh^-1 relative to the ground. The first train sounds a whistle of frequency 600 Hz. Find the frequency of the whistle as heard by a passenger in the second train a. before the trains meet and b. after the trains have crossed each other. The speed of sound in air is 340 ms^-1

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HC VERMA-SOUND WAVES-All Questions

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