Q1 A glass capillary tube is of the shape of a trun cated

Last updated: 6/10/2023

Q1 A glass capillary tube is of the shape of a trun cated cone with an apex angle a so that its two ends have cross sections of different radii When dipped in water vertically water rises in it to a height h where the radius of its cross section is b If the surface tension of water is S its density is p and its contact angle with glass is the value of h will be where g is acceleration due to gravity 2014 2 S bpg A cos a B cos 8 2 2S cos 0 a cos 8 a 2