Question

A body weighs 10 g in air and 6 g in water. How much will it weigh in Kerosene of R.D 0.8?

• A. 4.8 g
• B. 5.8 g
• C. 6.8 g
• D. 6.4 g

Answer 1

The correct option is A 4.8 g

We know,

Relative density$=\frac{{\rho }_l}{{\rho }_w}=\frac{\text{weight in medium}}{\text{weight in water}}$

$0.8=\frac{w}{6}$

$w=4.8g$

Option $\text{A}$ is the correct answer