In air , a metallic sphere with an internal cavity weighs 40g and in water weighs 20g . the volume of the cavity if the density of material with cavity is 8g/cm^3

Q. A piece of gold with a cavity present in it weighs

10 g

in air and

9 g

in water. What is the volume of the cavity?

[

Density of gold

= 19.3 {g/cm}^{3}]

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A piece of copper having an internal cavity weighs 261g in the air and 221g in water. If the density of copper is 9gcc−1 then the volume of the cavity is :

The correct option is C 11 ccVolume of capacity= volume displaced - actual volume=40−2619=999=11cc

A piece of copper having an internal cavity weighs $261 g$ in the air and $221 g$ in water. If the density of copper is $9 g c c^{- 1}$ then the volume of the cavity is :

The correct option is C 11 cc
Volume of capacity
$=$ volume displaced - actual volume
$= 40 - \frac{261}{9} = \frac{99}{9} = 11 c c$