Questions

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s. The speed of sound is 330 m/s. the frequency heard by the observer will be

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550 Hz

458.3 Hz

530 Hz

545.5 Hz

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detailed solution

Correct option is A

n'=n vv−vS⇒n'=500 330330−30=550 Hz

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