Question

The function of the eardrum in the middle ear is to

a. vibrate with the frequency of the received sound.
b. carry the sound energy to the brain.
c. amplify the received sound.
d. collect the sound waves.

Answer 1

It's A , eardrum just vibrate with the sound and gives signal to the bones of the middle ear !

Pinna works as sound receiver !
So answer is A !

Answer 2

A.vibrates with the frequency of the received sound