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Rahim Mander
Asked: 2022-11-11T20:26:14+05:30 In:

A source of sound and a listener are moving towards each other . The velocity of the source is `20 m s^(-1)` and that of the observer is `15 m s^(-1)` . If the velocity of sound is 340 m `s^(-1)` and its frequency is 640 Hz, find the apparent frequency of the sound .

A source of sound and a listener are moving towards each other . The velocity of the source is `20 m s^(-1)` and that of the observer is `15 m s^(-1)` . If the velocity of sound is 340 m `s^(-1)` and its frequency is 640 Hz, find the apparent frequency of the sound .
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  1. Apparent frequency , n = `((V ” “V)/(V” “V)) n = ((340 + 15)/(340 – 20)) 640 = 710` Hz

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