An object weighs 10 N in air. When immersed fully in a liquid, it weighs only 8 N. The weight of liquid displaced by the object will be:
(a) 2 N
(b) 8 N
(c) 10 N
(d) 12 N
Here, the weight of the object in the air $=10\ N$
Weight of the object, when immersed in water $=8\ N$
According to Archimedes' principle, the buoyant force$=$weight of the displaced liquid by the body.
Therefore, the weight of the liquid displaced by the object $=10\ N-8\ N=2\ N$
So, option (a) is correct.
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