Question

A column of air extending up to the height of atmosphere and base of area 10 cm $\times$ 10 cm was kept above a boy's head. Why didn't he get crushed?

• A. Pressure exerted is negligible
• B. Our skin is not sensitive enough to feel it
• C. The pressure inside his body is equal and opposite to the atmospheric pressure
• D. The pressure inside his body is much larger than the atmospheric pressure exerted from outside.

Answer 1

The correct option is C

The pressure inside his body is equal and opposite to the atmospheric pressure

The atmospheric pressure is counter-balanced by the internal forces of our body. So, he didn't get crushed.