Tag: properties of waves

Questions Related to properties of waves

When a wave is reflected from a ___________ medium, there is no change of phase.

physics properties of waves longitudinal and transverse waves travelling waves types of waves

  1. rarer

  2. denser

  3. both

  4. none of the above

Show answer
Correct Option: A
Explanation:

when reflection of wave takes place from the denser medium then  it undergoes a phase change of $\pi$ . Since, here in question the phase is not changing so the medium must be rarer.

answer is A.

The speed of a supersonic wave, as compared to that of sound is

physics properties of waves sound as a wave of disturbance vibrations in a tuning fork vibrations in tuning fork

  1. $less$

  2. $more$

  3. $equal$

  4. $1/10$

Show answer
Correct Option: B
Explanation:

Prefix in the word "Supersonic" is 'super', means superior to sound waves. Supersonic waves are faster than the sound wave in air.
Option "B" is correct.

Diffraction is a term used to describe one aspect of wave behaviour.
What does diffraction make possible?

physics properties of waves difference between interference and diffraction explaining wave phenomena diffraction

  1. The ability to hear around corners

  2. The ability to hear high frequency and low frequency sound waves

  3. The ability to hear loud and quiet sounds

  4. The ability to hear sound through a brick wall

Show answer
Correct Option: A
Explanation:

Diffraction is the slight bending of light as it passes around the edge of an object. The amount of bending depends on the relative size of the wavelength of light to the size of the opening. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable.

So, diffraction makes the sound wave hear around corner.