Velocity of sound in a gascous medium is 330 ms. If the pressure is increased by 4 times without causing a change in the temperature the velocity of sound in the gas is a) 330 ms b) 660 ms c) 156 ms d) 990 ms
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Explanation:
d) 990 ms
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Answer:
a) 330 m/s.
Change in pressure does not affect speed of sound in gas. This is because increasing pressure to 4 times also makes the density 4 times at constant temperature.
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