Question:
An obj ect weighs $10 \mathrm{~N}$ in air. When immersed fully in water, it weighs only $8 \mathrm{~N}$. The weight of the liquid displaced by the object will be
(a) $2 \mathrm{~N}$
(b) $8 \mathrm{~N}$
(c) $10 \mathrm{~N}$
(d) $12 \mathrm{~N}$.
Solution:
(a). Explanation: Weight of liquid displaced by an object = Weight of object in air - weight in liquid.