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An air tight container having a lid with...

An air tight container having a lid with negligible mass and an area of `8cm^(2)` is partially evacuated. If a 48 N forces is required to pull the lid of the container and the atmospheric pressure is `1.0xx10^(5)Pa` the pressure in the container before it is opened must be

A

0.6atm

B

0.5 atm

C

0.4 atm

D

0.2 atm

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(1)-P_(2)=(F)/(A), P_("atm")-P_("in")=(F)/(A)`
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