Question

A block of sheet of size 5 $\times$ 5 $\times$ 5 $c{m}^3$ is weighed in water. If relative density of sheet is 7, its apparent weight is

• A. 6 $\times$ 5 $\times$ 5 $\times$5 g wt
• B. 4 $\times$ 4 $\times$ 4 $\times$ 7 g wt
• C. 5 $\times$ 5 $\times$ 5 $\times$ 7 g wt
• D. 4 $\times$ 4 $\times$ 4 $\times$ 6 g wt

Answer 1

The correct option is A 6 $\times$ 5 $\times$ 5 $\times$5 g wt

Apparent weight = $dvg-\rho vg$

$=(7-1)vg$

$=6\times 5\times 5\times 5\times g$ wt

Correct option is (A).