Question

A stone weighs 25 N in air and 12 N when immersed in water. The magnitude of buoyant force acting on the stone in water is

• A. $12N$
• B. $25N$
• C. $13N$
• D. None of thsee

Answer 1

The correct option is C $13N$

Weight of a stone in water $=25N$
Weight of the stone when it is immersed in water $=12N$
So$,$
Magnitude of buoyant force acting on the stone
$=(25-12)N$
$=13N$

Hence,

option $\left(C\right)$ is correct answer.