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.

Four spheres made of different materials but having the same mass, hav

1.	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» Solution :VOLUME of a sphere, `V = (4)/(3) PIR^(3)` `V prop R^(3)` `r_(1) = 10^(2)` mm = `10^(-1)`m `r_(2) = 2xx10^(-2) = 2xx10^(-2) m` `r_(3)=30xx10^(-2)m=3xx10^(-1)m` `r_(4) = 10^(-5) xx 10^(3) m = 10^(-2)m` `V_(4) lt V_(2) lt V_(1) lt V_(3)`