Question

If the level of water raises from 60 $c{m}^3$ to 80 $c{m}^3$ on placing a stone x into a measuring jar, then the volume of the stone is _________ litre.

• A. 20
• B. 0.02
• C. 2
• D. 0.2

Answer 1

The correct option is B 0.02

Initial level in the measuring jar $V_i=60c{m}^3$

Final level in the measuring jar $V_f=80c{m}^3$

So, volume of the stone $V_{stone}=V_f-V_i=80-60=20c{m}^3$

$⟹V_{stone}=20c{m}^3=20ml=\frac{20}{1000}litre=0.02litre$