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Wavelengths of two notes in air are 80/1...

Wavelengths of two notes in air are 80/175 m and 80/173 m. Each note produces 4 beats/s. with a third note of a fixed frequency. The speed of sound in air is

A

400 m/s

B

300 m/s

C

280 m/s

D

320 m/s

Text Solution

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The correct Answer is:
D
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