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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousEasy2 minPYQ_2011

PhysicsEasysingle choice

Sound waves travel at $350 m / s$ through a warm air and at $3500 m / s$ through brass. The wavelength of a $700 Hz$ acoustic wave as it enters brass from warm airNEET 2011 (Screening)

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Answer:

Solution:

Velocity of sound $y = nλ$ $\frac{y _{1}}{y _{2}} = \frac{n _{1} λ _{1}}{n _{2} λ _{2}} (but n_{1} = n_{2}) λ_{2} = λ_{1} \frac{y _{2}}{y _{1}} = λ_{1} \times 10 λ_{2} = 10 λ_{1}$

Stream:NEETSubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2011

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