Question

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x 4. You must have seen the 0/1
doctor checking the sounds
produced in the chest or
heartbeat of a patient using a
medical instrument called
Stethoscope.On which
principle does this
Stethoscope work? * A. multiple reflection B. multiple refraction C. motion D. none of these​

Answer 1

Answer:

Actually a doctor is able to check the heart beats of the patient due to the vibrations produced by the heart. These vibrations being longitudinal waves travel to the doctor's ears through the medium of the hollow tube of the stethoscope .

Explanation:

This happens due to the principle that longitudinal waves need a medium to travel. For this to take place the tube of stethoscope is made hollow due to which the vibrations reach the doctor's ears by making the walls of the stethoscope their path