Science, asked by hitenderverma8629, 1 year ago

The diagram shows the variation of air pressure from an alarm siren at particular instant. the speed of sound in the air is 340 m/s.

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Answered by sonurakhidas
2
The siren of a police car produces a sound of frequency 420Hz.A man sitting next to the road notices that the pitch of the sound changes as the car moves towards and then away from him.1- WRITE DOWN THE NAME OF THE PHENOMENON. 2-ASSUME THAT THE SPEED OF THE SOUND IN AIR IS
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