Question

Give any two known examples of sound reffection?

Answer 1

Answer:

Echo – Repetition of sound caused by the reflection of the sound wave is called an echo. Reflection of Sound Waves – The bouncing back of the sound wave on striking a surface such as a wall, metal sheet, plywood, etc. is called the reflection of the sound wave

Explanation:

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Answer 2

Answer:

Explanation:

(a) Reflection of sound is used to measure the distance and speed of underwater objects. This method is known as SONAR. (b) Working of a stethoscope is also based on reflection of sound. In a stethoscope, the sound of the patient's heartbeat reaches the doctor's ear by multiple reflections of sound