The lower end of a capillary tube is dipped into water and it is seen that water rises
Channel: Doubtnut
Date: 2020-05-24

The lower end of a capillary tube is dipped into water and it is seen that water rises through 7.5 cm in the capillary. Given surface tension of water is `7.5 xx 10^(-2) N//m` and angle of contact between water and glass capillary tube is zero, What will be diameter of the capillary tube ? (Given, `g = 10 ms^(-2)`)