Four spheres made of different materials but having the same mass, have a radii of 100 mm, `2xx10^(-2)`m, 30 cm and `10^(-5)`km then arrange them in ascending order of their volumes.

Answer

`V_(4)ltV_(2)ltV_(1)ltV_(3)`

Explanation

Volume of a sphere, `V=4/3pir^3`
`Vpropr^3`
`r_(1)=10^2mm=10^(-1)m`
`r_(2)=2xx10^(-2)=2xx10^(-2)m`
`r_(3)=30xx10^(-2)m=3xx10^(-1)m`
`r_(4)=10^(-5)xx10^3m=10^(-2)m`
`V_(4)ltV_(2)ltV_(1)ltV_(3)`