The velocity of sound in a tube containing air at \( 27^{\circ} \mathrm{C} \) and a pressure of ...

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The velocity of sound in a tube containing air at \( 27^{\circ} \mathrm{C} \) and a pressure of \( 76 \mathrm{~cm} \) of mercurv is \( 330 \mathrm{~m} \mathrm{~s}^{-1} \). What will be its velocity, when the pressure is increased to 100 cm of mercury and the temperature is kept constant?
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