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Question

Stethoscope utilizes the principle of ___________.


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Solution

Stethoscope:

  1. A stethoscope is used to examine a patient physically.
  2. It is a medical instrument through which doctors can listen to the heartbeat and other sound-produced within the body.
  3. When this diaphragm is placed on the chest of a patient, it vibrates due to faint sound coming from the chest, these vibrations are channelized through the air-filled tube and amplified by multiple reflections by the inner walls of the tube.
  4. It works on the principle of multiple reflections of sound.
  5. Multiple reflections mean that the sound wave or the light wave reflects more than one time and in this reflection, the angle of incidence and the angle of reflection will always same.

Final Answer:

A stethoscope utilizes the principle of multiple reflections of sound.


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