Question
The working principle of a stethoscope is based on the _____.
The correct answer is
reflection of sound
Stethoscope Working Principle: Sound Reflection
A stethoscope is a medical instrument used for listening to internal body sounds, such as heartbeats and breathing.
Core Principle Explained
The working principle of an acoustic stethoscope is fundamentally based on the reflection of sound.
- Sound waves generated within the body travel through the chest piece.
- These waves are directed up the flexible tubing via multiple reflections off the inner surfaces of the tube.
- The sound then travels to the earpieces, allowing the listener to hear the internal body sounds clearly.
Evaluating Other Options
- Option 1 (Conversion to electric signals): This describes electronic stethoscopes, not the basic principle of acoustic ones.
- Option 2 (Conversion to light): Stethoscopes work with sound waves, not light.
- Option 3 (Absorption of high-frequency sound): Stethoscopes aim to transmit sound efficiently, not absorb it.
Therefore, the primary mechanism enabling a stethoscope's function is the reflection of sound waves.
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Important Questions from Reflection and Refraction
Human eye can see objects at different distances with contrasting illuminations. This is due to
Light enters the eye through a thin membrane called
The part of the human eye on which the image is formed is
Myopia is a defect in human vision where an image of a
Cornea in human eye
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