Question

What is the ratio of sum of volumes of two hemispheres of radius 1cm each to

the volume of a sphere of radius 2 cm?

a) 1:1 b) 1:8 c) 8 :1 d) 1:16​

Answer 1

Step-by-step explanation:

Radius of sphere =1unit

Surfacearea

Volume

=

4πr

2

3

4

πr

3

=

3

4

π(1)

3

×

4π(1)

2

1

=

3

1

∴V:S=1:3

Answer 2

Answer:

B is the answer

explanation: 1:8 is the correct answer