Question

write down any two use of reflection of sound​

Answer 1

Answer:

Following are the practical applications of reflection of sound waves are:

• Reflection of sound is used to measure the distance and speed of underwater objects

• The working of a stethoscope is also based on the reflection of sound

• The working of a hearing aid is based on the reflection of sound

Answer 2

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1. Hearing aid:-

It is a device used by the people who are hard of hearing. Here the sound waves, which are received by the hearing aid are reflected into a narrower area leading to the ear.

2. Sound boards:-

Curved surfaces can reflect sound waves. This reflection of sound waves is used in auditorium to spread the waves uniformly throughout the hall. Reflection of sound waves is done by using Sound Boards. The speaker is located at the focus of the sound board.

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