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A bat emits a sound whose frequency is 9...

A bat emits a sound whose frequency is 91 kHz. The speed of sound in air at `20.0^@` C is 343 m/s. However, the air temperature is `35^@C` , so the speed of sound is not 343 m/s. Find the wavelength of the sound.

A

`5.0 xx 10^(-2) s `

B

`3.9 xx 10^(-3) s `

C

`1.1 xx 10^(-2) s `

D

`5.5 xx 10^(-3) s `

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The correct Answer is:
B
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