Multiple choice

Echoes are heard due to

(a) successive reflections (b) multiple refractions (c) multiple sources

  1. Only (a)

  2. Both (b) and (c)

  3. Both (a) and (b)

  4. Only (c)

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Echoes are heard due to successive or multiple reflections.