Question

A body weights W in air and it loses its weight by 25% in water. The relative density of the body is

• A. 4
• B. 1/4
• C. 3/4
• D. 4/3

Answer 1

The correct option is A 4

Let density of body is $d$ & its volume is $v$.

Let density of water is $\delta$

$\begin{array}{c}\Rightarrow vdg=w\\ \&v\delta g=\frac{w}{4}\\ \Rightarrow \frac{d}{\delta }=4\end{array}$

$\therefore$ relative density is $4$

$\therefore$ Option $A$ is correct.