Question

A 50kg mass of a body is immersed in water then we observe the mark on measuring cylinder as $70c{m}^3.$ If the body is taken out from the cylinder, the mark observed on cylinder is $50c{m}^3.$ Then the density of that body is [The graduations marked in $c{m}^3$]

• A. $2500g/c{m}^3$
• B. $250g/c{m}^3$
• C. $2.5g/c{m}^3$
• D. $0.025\times {10}^{3}g/c{m}^3$

Answer 1

The correct option is A $2500g/c{m}^3$

$d=\frac{M}{\left(Volume\right)}$
$=\frac{50\times 1000}{20}$
$=25000gm/c{m}^3$