Question
The weight of a body in water is one-third of its weight in air. The density of the body is(A) $0.5 \mathrm{gm} / \mathrm{cm}^{3}$(B) $1.5 \mathrm{gm} / \mathrm{cm}^{3}$(C) $2.5 \mathrm{gm} / \mathrm{cm}^{3}$(D) $3.5 \mathrm{gm} / \mathrm{cm}^{3}$
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This means that the weight of the body in air is $W = mg$ and the weight of the body in water is $W' = \frac{1}{3}mg$. Show more…
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