Statement: When pressure increases, the speed of sound decreases.
Comment on the correctness of the statement and explain.
$[2 marks]$

Open in App

Solution

The given statement is incorrect. Pressure does not affect the speed of sound. When pressure increses, the volume decreases and the density increses. Therefore, the pressure-to-density ratio does not change in the Laplace's equation: $V = \sqrt{\frac{γ P}{ρ}}$
$[2 marks]$

Suggest Corrections

Similar questions

Use the formula $v = \sqrt{\frac{γ P}{ρ}}$ to explain why the speed of sound in air is independent of pressure, increases with temperature, increases with humidity.

Q. Use the formula

v = \sqrt{\frac{γ P}{ρ}}

to explain why the speed of sound in air
(a) is independent of pressure,
(b) increases with temperature,
(c) Increases with humidity .

Q. Which among the following statements are correct about the sound waves?

1. Compression and rarefaction involve changes in density and pressure.
2. Sound will become audible if a string is set into vibrations with a time period of 0.04 s on the surface of the moon.
3. Sound travels slower than light.
4. As the length of the vibrating body increases, the frequency increases.

Q. Choose the correct statement based on the speed of sound in different media.

Q. Read the following statements carefully.
(A) The SI unit of wave velocity is metre per second
(B) Frequency of a wave does not change with change in medium
(C) The speed of sound in a medium depends on temperature of the medium
(D) The speed of sound increases with increase in density of air
Choose the correct statements:

Join BYJU'S Learning Program

Statement: When pressure increases, the speed of sound decreases. Comment on the correctness of the statement and explain. [2 marks]

The given statement is incorrect. Pressure does not affect the speed of sound. When pressure increses, the volume decreases and the density increses. Therefore, the pressure-to-density ratio does not change in the Laplace's equation: V=√γPρ [2 marks]

Statement: When pressure increases, the speed of sound decreases.
Comment on the correctness of the statement and explain.
$[2 marks]$

The given statement is incorrect. Pressure does not affect the speed of sound. When pressure increses, the volume decreases and the density increses. Therefore, the pressure-to-density ratio does not change in the Laplace's equation: $V = \sqrt{\frac{γ P}{ρ}}$
$[2 marks]$