Embibe Experts Solutions for Chapter: Viscosity and Surface Tension, Exercise 1: Exercise-1

A capillary tube of the radius, $R$ is immersed in water, and water rises in it to a height, $H$. Mass of water in the capillary tube is $M$. If the radius of the tube is doubled, the mass of water that will rise in the capillary tube will now be

A liquid rises in a capillary tube when the angle of contact is

Liquid rises in a capillary tube up to a height of $50 \mathrm{mm}$. The reading along the tube when the capillary tube is tilted to an angle of $45°$ is :

When a cylindrical tube is dipped vertically into a liquid, the angle of contact is $140°.$ When the tube is dipped with an inclination of $40°$, then the angle of contact is

Radius of a capillary is $2\times {10}^{-3} \mathrm{m}$. A liquid of weight $6.28\times {10}^{-4} \mathrm{N}$ may remain in the tube if surface tension of the liquid will be:

A thin metal ring of internal radius $8 \mathrm{cm}$ and external radius $9 \mathrm{cm}$ is supported horizontally from the pan of a balance so that it comes in contact with water in a glass vessel. It is found that an extra weight of $7.48 \mathrm{g}$ is required to pull the ring out of water. The surface tension of water is

A water drop is divided into $8$ equal droplets. The pressure difference between the inner and outer side of the big drop as compared to smaller drops will be :

A soap bubble of diameter $8 \mathrm{mm}$ is formed in air. The surface tension of liquid is $30$ $\mathrm{dyne} {\mathrm{cm}}^{-1}$. The excess pressure inside the soap bubble is :