A uniform disc of diameter R/2 is put over another uniform disc of diameter R of same thickness and density. The peripheries of the two disc touch each other. The centre of mass of the system from centre of big disc is

A uniform disc of diameter R/2 is put over another uniform disc of dia

1.	A uniform disc of diameter R/2 is put over another uniform disc of diameter R of same thickness and density. The peripheries of the two disc touch each other. The centre of mass of the system from centre of big disc is
Answer» `R//10` `R//20` `9R//10` `11R//10` ANSWER :B