A solid weighs 100 gf (gram force) in air and 90 gf (gram force) when completely immersed in water. Calculate the volume of the solid.

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Solution

The correct option is D
Weight of solid in air = 100 gf
Weight of solid in water = 90 gf
Weight of water displaced = up thrust = 100 gf − 90 gf = 10 gf
Volume of the solid = Volume of water displaced
$= \frac{M a s s o f w a t e r d i s p l a c e d}{D e n s i t y o f w a t e r}$
$= \frac{10 \times 10^{- 3} k g}{(1000 k g / m^{3})}$
$= 10 \times 10^{- 6} m^{3}$

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A solid weighs 100 gf (gram force) in air and 90 gf (gram force) when completely immersed in water. Calculate the volume of the solid.

The correct option is D Weight of solid in air = 100 gf Weight of solid in water = 90 gf Weight of water displaced = up thrust = 100 gf − 90 gf = 10 gf Volume of the solid = Volume of water displaced =Mass of water displacedDensity of water =10×10−3kg(1000kg/m3) =10×10−6m3