9.In a stethoscope, sound of heartbeats travel through the stethoscope’s tubeSelect an answerAas a sonic boomBin a straight lineCby bending along the tubeDby undergoing multiple reflections
Question
9.In a stethoscope, sound of heartbeats travel through the stethoscope’s tubeSelect an answerAas a sonic boomBin a straight lineCby bending along the tubeDby undergoing multiple reflections
Solution
The sound of heartbeats in a stethoscope travels by undergoing multiple reflections. So, the answer is D.
Here's a step-by-step explanation:
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When the diaphragm (the flat surface on the stethoscope) is placed on the patient's chest, it picks up the vibrations caused by the heartbeat.
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These vibrations cause the air inside the stethoscope's tube to vibrate.
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These vibrations (sound waves) travel up the tube to the listener's ears.
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The sound waves don't travel in a straight line or bend along the tube. Instead, they bounce back and forth within the tube (undergo multiple reflections) until they reach the listener's ears.
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This is why the listener hears the sound of the heartbeat.
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