Question

Question No.18
ENGLISH
The velocity of sound waves in air at 300 K is 400
ms-1. At the same temperature, find velocity of
sound in air when the pressure of gas is doubled.
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Answer 1

Answer:

See the above solution.

Thanks.

Answer 2

There will be same velocity and no change as there is no effect of pressure on velocity.

• Sound generally tends to travel in any medium because of the movement of the particles of the medium to the listener by the source.
• In the approximation of an ideal gas, air pressure doesn't have any role to execute to decide the velocity of the sound.
• And as pressure and density together contribute to the sound velocity they nullify each other.

• Therefore, there is no effect of pressure on the velocity of sound.