Question

What do you mean by reflection of sound? State one condition for the reflection of a sound wave. Name a device in which reflection of sound wave is used.

Answer 1

1. The term "reflection of a sound wave" refers to the return of a sound wave in the same medium when it strikes a surface like a wall, metal sheet, plywood, etc.
2. A reflecting surface's size needs to be greater than the sound wave's wavelength in order for a sound wave to reflect.
3. A megaphone (also known as a speaking tube), a sound board, and an ear trumpet are examples of devices that exploit sound wave reflection.