Question

Stethoscope was invented by [AFMC 1985]
A) Rene Laennec
B) Wilhelm Roentgen
C) Edward Jenner
D) Joseph Lister

Answer 1

hii
stethoscope was invented by a french scientist name Rene Laennec.
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Answer 2

hi friend,
Stethoscope was invented by a French scientist Rene Laennec
This device was used to hear heartbeats by doctors. A normal heart beats about 65-75 times per minute. In infants, the heart beats 90-100 times per minute.

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