A body weighs 20gf in air and 18 gf in water. Calculate relative density of the material of
the body
Weight of the body in the air, W1 = 20gf
Weight of the body in water, W2 = 18gf
We know that, R.D of solid =
W1/W1−W2 x relative density of water
\begin{aligned} &=\frac{20}{20-18} \times 1\\ &\text { [R.D. of water is } 1]\\ &=10 \end{aligned}
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