"The   diameters of the internal and external surfaces of a hollow spherical shell
Channel: Doubtnut
Date: 2020-06-28

"The
 
  diameters of the internal and external surfaces of a hollow spherical shell
 
  are 6 cm and 10 cm respectively. If it is melted and recast into a solid
 
  cylinder of diameter 14 cm, find the height of the cylinder."