Question

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
• B. Decreases
• C. Remain constant
• D. First decrease and then increase

Answer 1

Answer: (B)

Decreases

Answer 2

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 increases