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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2011
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Q)

Sound waves travel at $350 m/s$ through brass. The wavelength of a 700 Hz acoustic wave as it enters brass from wave air :


( A ) increases by a factor 10
( B ) decreases by a factor 20
( C ) increases by a factor 20
( D ) decreases by a factor 10

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