Question

The volume of sphere is $\frac{4}{3}\pi c{m}^3$. Then the radius is ................. m.

• A. 1
• B. 0.02
• C. 0.01
• D. 2

Answer 1

The correct option is C 0.01

Volume of a sphere = $\frac{4}{3}\pi c{m}^3$
$⟹\frac{4}{3}\pi r^3=\frac{4}{3}\pi$ ......... $[\because \text{volume of a sphere}=\frac{4}{3}\pi r^3]$
$⟹r^3=1$
$\therefore r=1cm$
But, $1cm=0.01m$

Thus, the radius is $0.01m$