give two practical applications of reflection of sound waves
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echo which is repitition of sound wave and striking the surface. second is reverberation that is the multiple reflection of sound waves through various objects
reverberation occurs in big empty halls and makes the sound blurr
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(i) Reflection of sound is used to measure the distance and speed of underwater objects. This method is known as SONAR.
(ii) 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 reflection of sound.
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