AP ICET 2019 Shift 1 Paper

Question : 105 of 200

Marks: +1, -0

A solid sphere of radius 10 cm is melt and moulded into 8 solid spherical balls of equal radius. The surface area of each ball, in sq. cm. is

Solution:

Let the radius of the spherical ball be r cm

\;{4}/{3} × π × 10 × 10 × 10=8 × \;{4}/{3} × π × r × r × r

⇒ r = 5 cm

The surface area of each ball

= 4×π×5×5

= 100π.

Go to Question:

Prev Question

Next Question