You can often hear a person speaking from behind a tall fence even if you cannot see them. Which property of sound waves explains this phenomenon?
Diffraction
Diffraction allows sound waves to bend around obstacles like a fence, letting you hear a person speaking even when you cannot see them.
Reflection, polarization and refraction describe other wave behaviours, not the bending of waves around obstacles seen here.
Hence, Diffraction is the correct answer.
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Important Questions from Wave
Which of the following is correct?
I. Sound is a mechanical wave
II. Sound wave does not need any medium to propagate
At a particular temperature, sound propagates in ______ at the fastest speed .
The atmospheric green house effect is produced mainly by the absorption and re-emission of:
Which of the following are examples of electromagnetic waves?
a. Television waves
b. Ultraviolet rays
c. X-rays
d. Sun rays
When light passes from one medium into another medium, then the physical property which does not change is
