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Sound waves travel at 350 m s^(-1) throu...

Sound waves travel at 350 m `s^(-1)` through a warm air and at 3500 m `s^(-1)` through brass. The wavelength of a 700 Hz acoustic wave as it enters brass from warm air

A

Decreases by a factor 20

B

Decreases by a factor 10

C

Increases by a factor 20

D

Increases by a factor 10

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The correct Answer is:
D
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