Factors That do Not Affect Speed of Sound

Q. Does the sound of a bomb explosion travel faster than the sound of humming bee?

Q.

What is the dimensional formula of "DECIBEL" ?

Q. When temperature is constant, why does change in pressure has no effect on speed of sound?

Q. State true or false:
Speed of sound in any medium depends on pressure.

1. True
2. False

Q. Speed of sound does not depend upon

1. Pressure
2. Temperature
3. Medium
4. Humidity

Q. Statement: When pressure increases, the speed of sound decreases.
Comment on the correctness of the statement and explain.
$\left[2\text{marks}\right]$

Q. If the speed of light in a medium at a given temperature is 348m/s at a pressure of 2atm. Now the pressure is increased to 5 atm, temperature remaining constant. Now the speed of sound in the same medium will be :

1. less than 348m/s
2. equal to 348m/s
3. none
4. greater than 348m/s

Q. The speed of a sound wave

1. does not depend upon the medium
2. only depends upon temperature of the medium
3. depends upon the nature of the medium
4. only depends upon intensity of sound

Q. The velocity of sound in gas is independent of _______. Fill in the blank.

1. pressure
2. density
3. temperature
4. humidity

Q. Which of the following is not a factor affecting the speed of sound in a gas.

1. Density
2. Temperature
3. Humidity
4. None

Q. Assertion :Statement-1 : Velocity of sound waves does not change appreciably as the waves propagate upwards from surface of Earth [for a small distance].
and Reason: Statement-2 : Density and pressure decrease but as long as the temperature remains constant the velocity of sound remains unchanged.

1. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
2. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
3. Satement-1 is True, Statement-2 is False
4. Statement-2 is False, Statement-2 is True

Q.

The speed of sound depends on

1. Temperature

2. Pressure

3. State of matter

4. All of these

Q. The velocity of sound is not affected by change in

1. temperature
2. medium
3. pressure
4. wavelength

Q. Column I Contains a list of processes involving expansion of an ideal gas. Match this with Column II describing the thermodynamic change during this process. Indicate your answer by darkening the appropriate bubble of the $4\times 4$ matrix given in the ORS.

Q.

How do the following factors affect, it at all, the speed of sound in air:

i. Frequency of sound.

ii. Amplitude of sound.

iii. Temperature.

iv. Humidity.

v. Pressure.