A beaker containing a liquid is kept inside a big closed jar. If … - Vidyadip

MCQ

A beaker containing a liquid is kept inside a big closed jar. If the air inside the jar is continuously pumped out, the pressure in the liquid near the bottom of the liquid will

A
Increases
✓
Decreases
C
Remain constant
D
First decrease and then increase

✓

Answer

Correct option: B.

Decreases

b
(b) Total pressure at (near) bottom of the liquid
$P = {P_0} + h\rho g$
As air is continuously pumped out from jar (container), ${P_0}$ decreases and hence $P$ decreases.

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