A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each is dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?

A sphere of diameter 5 cm is dropped into a cylindrical vessel partly filled with water. The diameter of the base of the vessel is 10 cm. If the sphere is completely submerged, by how much will the level of water rise ?

A sphere of diameter 6cm is dropped in a right circular cylindrical vessel partly filled with water.The diameter of cylindrical vessel is 12cm.If the sphere is completely submerged in water,by how much will the level of water rise in the cylindrical vessel.

A sphere of diameter 6 cm is dropped into a cylindrical vessel partly filled with water. The diameter of the vessel is 12 cm. If the sphere is completely submerged, by how much will the surface of water rise ?

The Marina trench is located in the Pacific Ocean, and at one place it is nearly eleven km beneath the surface of water. Hie water pressure at the bottom of the trench is about 1.1 xx 10^8 Pa. A steel ball of initial volume 0.32 m^3 is dropped into the ocean and falls to the bottom of the trench. What is the change in the volume of the ball when it reaches to the bottom?

Water flows out through a circular pipe whose internal diameter is 2 cm, at the rate of 6 metres per second into a cylindrical tank. The water is collected in a cylindrical vessel, radius of whose base is 60 cm. find the rise in the level of water in 30 minutes?

A cylindrical tub of radius 12 cm contains water to a depth of 20 cm. A spherical ball is dropped into the tub and the level of the water is raised by 6.75 cm. Find the radius of the ball.

Water flows out through a circular pipe, whose internal diameter is 2 cm, at the rate of 0.7 m per second into a cylindrical tank, the radius of whose base is 40 cm. By how much will the level of water rise in half an hour ?

An empty spherical flask of diameter 15 cm is placed in water of refractive index 4//3 .A parallel beam of light strikes the flask.Where does it get focussed,when obsrved from within the flask?