CERT Based The height of mercury in the barometer tube is 70

Last updated: 6/21/2023

CERT Based The height of mercury in the barometer tube is 70 cm due to entrapped air in it as shown in figure Now from this position tube is pulled up slightly then length of the mercury column in the tube will NCERT Pg 254 not perfect vacuum L 70 cm 1 Remain 70 cm 2 Slightly more than 70 cm