Question

A sphere of diameter 21 cm is dropped into cylindrical vessel of diameter 36 cm, partly filled with water. If the sphere

is completely submerged then find the rise in water level.​

Answer 1

Answer:

Let r & R be the radius of the sphere and cylindrical vessel respectively.

Now, 2r=18cm⇒r=9cm

2R=36cm⇒R=18cm

Let the rise in water level in the cylindrical vessel be

′

h

′

cm.

Volume of sphere =

3

4

πr

3

Volume of liquid displaced in the cylindrical vessel =πR

2

h

If the sphere is completely submerged in

Answer 2

Answer:

First tell which class?