How does a medical stethoscope work to transmit heart and lung sounds to a doctor's ears?

Type: MCQ • Marks: 1

A. By multiple reflections of sound inside the flexible rubber tube

B. By absorption

C. By electrical conversion

D. By magnetic induction

Explanation

Stethoscopes channel sound waves via continuous internal tube reflections directly into the earpieces.

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Class 9th Science (MCQ)

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