Which of the following statements is/are correct about waves?
I. Waves are patterns of disturbance that move without the actual physical transfer of flow of matter.
II. Waves cannot transport energy.
III. The pattern of disturbance in the form of waves carries information that propagates from one point to another.
IV. All our communications essentially depend on the transmission of signals through waves.

Which of the following statements are true?
i) Direction of wave propagation and particle motion are along the same direction for longitudinal waves
ii) Direction of wave propagation and particle motion are along the same direction for Transverse waves
iii) Direction of wave propagation and particle motion are perpendicular to each other for longitudinal waves
iv) Direction of wave propagation and particle motion are perpendicular to each other for transverse waves

1. I and iv are correct
2. I and iii are correct
3. ii and iv are correct
4. ii and iii are correct

Consider the following statements and select the incorrect statement(s) from the following.
I. Mechanical waves transfer energy and matter both from one point to another.
II. Mechanical waves transfer only energy from one point to another.
III. Mechanical waves transfer only matter from one point to another.

1. I only
2. II only
3. I, II, and III
4. I and III

Mechanical waves on the surface of a liquid are:

1. Longitudinal
2. Transverse
3. Both transverse and longitudinal
4. Torsional

Which of the following does not require a medium for propagation?
(a) Sound waves
(b) Lightwaves
(c) Water waves

1. (b) and (c) are correct
2. (a), (b) and (c) are correct
3. (a) and (b) are correct
4. Only (b)

For which of the following do the longitudinal waves exist?

1. Vacuum
2. Water
3. Both (b) and (d)
4. Air

Which of the following is carried by waves from one place to another?

1. Mass
2. Velocity
3. Wavelength
4. Energy

Mechanical Waves cannot travel through:

1. Air
2. Water
3. Steel
4. Space

Waves that travel perpendicular to the direction of vibrations are known as:

1. Transverse wave
2. Longitudinal wave
3. Circular wave
4. None of these

Light waves are

1. Longitudinal
2. Transverse
3. Partly longitudinal, partly transverse
4. Sometimes longitudinal, sometimes transverse.

When a longitudinal wave travels through a medium, the particles of the medium show compression and Rarefaction. What happens when compression takes place in the medium?

1. The Density of the medium decreases.
2. The pressure of the medium decreases.
3. The molecules of the medium come closer to each other.
4. The Wavelength of the wave increases.

In which of the following media can non-mechanical waves travel?

1. In a vacuum and in a medium
2. In vacuum but not in a medium
3. In a medium but not in a vacuum
4. Neither in a medium nor a vacuum

Longitudinal waves are those ___.

1. In which the particles of the medium vibrate along the direction of motion of the wave.
2. In which the particles of the medium vibrate perpendicular to the direction of motion of the wave.
3. Which does not require a material medium for their propagation.
4. None of the above

In a medium, a mechanical wave travels. With the wave, which of the following quantities is moved from one point to another?

1. Mass
2. Speed
3. Density
4. Energy

A longitudinal wave is produced by the vibration of an object. It travels through a medium such as air by forming alternate regions of compression and Rarefaction of air molecules. As a longitudinal wave travels through air, the regions of compression and Rarefaction in it can be shown as:

A pulse is a wave:

1. Of high duration
2. Of short duration
3. Which travels in a vacuum only
4. Which travels in solids only