Question:
We hear an echo due to
We hear an echo due to
Options:
- a) Refraction of sound waves
- b) Reflection of sound waves
- c) Diffraction of sound waves
- d) Resonance due to sound waves
- a) Refraction of sound waves
- b) Reflection of sound waves
- c) Diffraction of sound waves
- d) Resonance due to sound waves
correct answer : b)
Explanation:
An echo is heard due to the reflection of sound waves from a distant obstacle.
An echo is heard due to the reflection of sound waves from a distant obstacle.