Question

EXERCISE 3
Q. 1. If radius of a solid metallic sphere is
double, then by how much its volume will in-
crease ? Find the increase percentage ?
Sol. Let radius of sphere, ar​

Answer 1

Step-by-step explanation:

Given that radius of the sphere is doubled.

Let the Initial volume of sphere V=

3

4

πr

3

Incresed volume V

′

=

3

4

π(2r)

3

=8V

Thus, Volume is increased by:

V

8V−V

×100=700%