In an experiment to determine the surface tension of water by capillary rise, water rises to a height of 0.03m in a capillary tube of diameter `10^-3`m. If the angle of contact is negligibly small, calculate the surface tension of water.

In a capillary tube of diameter 10^-3m , water rises to a height of 0.03 m. calculate the surface tension of water.

The capillary rise in a tube of diameter 1mm when surface tension of water is 0.06 Nm^-1 is

Two capillary tubes of different diameter are dipped in water. The rise of water is:

Water rises in a capillary tube to a height 2cm. In another capillary tube whose radius is one third of it, how much the water will rise? If the first capillary tube is inclined at an angle 60^0 with the vertical, then what will be the position of water in the tube?

Water rise in a capilary to a height h when the capillary is vertical. If the same capillary is now inclined at 45° to the vertical, the vertical height of water level in it will be:

Calculate the amount of energy neeeded to break a drop of water of diameter 2xx 10^-3 m into 10^9 droplets of equal size( Surface tension of water = 72xx 10^-31 N/m .

A long capillary tube with both ends open is filled with water and set in a vertical position. What will be the height of column of water remaining in the tube? The radius of the tube is 1mm and surface tension of water is 0.07 newton/meter.

A man standing on the deck of a ship which is 10 m above the water level, observes the angle of elevation of the top of a hill as 60° and angle of depression of the base of a hill as 30°. Calculate the distance of the hill from the ship and the height of the hill.

A man is standing on the deck of a ship which is 25m above water level. He observes the angles of elevation of the top of a lighthouse as 60° and the angle of depression of the base of light house as 45°.Calculate the height of the light house.