If axis of rotation of two identical cylinders, one solid and other hollow is taken as their geometrical axis. Then the ratio of radius of gyration of hollow one to that of solid is…………

If axis of rotation of two identical cylinders, one solid and other ho

1.	If axis of rotation of two identical cylinders, one solid and other hollow is taken as their geometrical axis. Then the ratio of radius of gyration of hollow one to that of solid is…………
Answer» `(1)/(2)` `(1)/(sqrt(2))` 2 `sqrt(2)` Solution :`("RADIUS of gyration of hollow cylinder")/("Radius of gyration of SOLID cylinder")` `=(R)/(R//sqrt(2))=sqrt(2)`