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A person opens his mouth on hearing a th...

A person opens his mouth on hearing a thunder in order to

A

equalise pressure of air on both sides of the ear drum

B

receive more sound

C

allow air to come out of the mouth

D

overcome fear

Text Solution

Verified by Experts

The correct Answer is:
A
The Eustachian tube is the part of the ear that keeps the atmospheric pressure of the inner ear equal with that of the outside air. Moving the jaw or throat opens up the Eustachian tube, giving it a chance to equalize the pressure behind the eardrum.
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