In Stethoscope, the sound of the patient's heartbeat reaches the doctor's ears by -
In a stethoscope, the sound of the patient's heartbeat travels through the hollow tube to the doctor's ears by successive 'multiple reflections of sound' off the inner walls…
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In Stethoscope, the sound of the patient's heartbeat reaches the doctor's ears by -
Answer and explanation
Correct answer B
In a stethoscope, the sound of the patient's heartbeat travels through the hollow tube to the doctor's ears by successive 'multiple reflections of sound' off the inner walls of the tube.
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