How does a stethoscope use the principle of reflection of sound?
Subject: General Awareness | Topic: Science | Difficulty: MEDIUM
Options
- (A) By transmitting heart-beat sounds through multiple reflections within its tube
- (B) By filtering sound by frequency
- (C) By directing sound outwards
- (D) By absorbing sound waves
Verified Answer
Option (A): By transmitting heart-beat sounds through multiple reflections within its tube
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