René Laennec invented the stethoscope to listen to body sounds. Why does a modern stethoscope enable doctors…
René Laennec invented the stethoscope to listen to body sounds. Why does a modern stethoscope enable doctors to hear heartbeats clearly?
It creates new sound waves inside the tube
It reflects sound waves multiple times inside the hollow tube without letting them escape
It converts sound waves into light signals
It absorbs outside noise using liquid filled inside
Solution
The tube of a stethoscope guides sound from the patient's body to the doctor's ears through multiple internal reflections, preventing loss of sound energy.