Sagot :
Answer:
(a) Reflection of sound is used to measure the distance and speed of underwater objects. ... (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.
Answer:
Dear,
(a) Reflection of sound is used to measure the distance and speed of underwater objects. ... (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.
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Explanation:
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