Propagation of Sound Waves

Q.

Why speed of sound increases in solid?

Q. In transverse waves, the particles move in a direction to the direction of velocity of wave.

1. parallel
2. perpendicular
3. diagonal

Q.

Define transverse wave and give two examples of transverse wave

Q.

In which of the following mediums does sound travel fastest at a particular temperature?

1. iron

2. water

3. hydrogen

4. aluminum

Q. Sound wave travelling through air is a:

1. Longitudinal wave
2. Mechanical wave
3. Electromagnetic wave
4. Transverse wave

Q. Which of the following statements is incorrect?

1. Sound is produced by vibrating body.​
2. Sound is a longitudinal wave.​
3. Sound requires material medium for propagation.​
4. Speed of sound is maximum in gases.​

Q. Which type of waves can propagate in solids?

1. Both transverse and longitudinal
2. Neither transverse nor longitudinal
3. Transverse
4. Longitudinal

Q.

Look at the following figure and choose the correct statement regarding sound propagation in this case.

1. Sound travels only as a transverse wave.

2. Sound travels as both transverse and longitudinal waves.

3. Sound travels only as a longitudinal wave.

4. Sound does not travel as sound requires air as a medium for its propagation.

Q. Which of the following is/are properties of a sound wave?

1. It does not requires a medium to propagate.
2. It is a longitudinal wave.
3. It is a mechanical wave.
4. Travels faster than light.

Q. Statement 1: No sound can be heard on the surface of the Moon.

Statement 2: High surface temperature of the Moon restricts sound propagation.

1. Only statement 2 is correct​.
2. Both the statements are correct.
3. Both the statements are incorrect.
4. Only statement 1 is correct.

Q. Propagation of sound can be visualized as:

1. Propagation of density variations
2. Propagation of pressure variations
3. Series of compressions and rarefactions
4. All of the above.

Q. If there is an explosion on the moon, a person standing at some distance can hear the sound.

1. True
2. False

Q.

The distance between a compression and its next rarefaction, in a sound wave of wavelength $\lambda$, will be:

1. $\frac{\lambda }{2}$

2. $\frac{\lambda }{16}$

3. $\frac{\lambda }{8}$

4. $\frac{\lambda }{4}$

Q.

Compression and rarefaction is related to which of these waves?

1. Transverse wave

2. Longitudinal wave

3. Light waves

4. Radio waves

Q.

In a sound wave, compression is the region of low pressure.

1. True

2. False

Q. In a sound wave, compression is a region of:

1. No pressure
2. Low pressure
3. Atmospheric pressure
4. High pressure

Q. In the following statements , tick (T) against those which are true , and False against those which are false :
The sound has maximum velocity in solids.

1. True
2. False