The hieght of a mercury barometer is 75.6 cm . the baromter tube has cross -section of `1cm ^(2)`
Channel: Doubtnut
Date: 2020-08-23

The hieght of a mercury barometer is 75.6 cm . the baromter tube has cross -section of `1cm ^(2)` and the volume of the enclosed space above the mercury surface is 10 cc. one cc of air at atmospheric pressure is introduced into the tube. Find the change in the reading of the barometer.