A circular disc X of radius R made from iron plate of thickness 't' and another disc Y of radius 4R made from an iron plate of thickness `t/4`. Then the relation between the moments of inertia `I_(x) and I_(Y)` is

A circular disc X of radius R is made from an iron of thickness t , and another disc Y of radius 4R is made from an iron plate of thickness t//4 . Then the relation between the moment of mertia I_(x) and I_(Y) is :

A circular disc X of radius R is made from an iron of thickness t , and another disc Y of radius 4R is made from an iron plate of thickness t//4 . Then the relation between the moment of mertia I_(x) and I_(Y) is :

A circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4R is made from an iron plate of thickness (t)/(4) . Then the relation between the moment of inerita I_X and I_Y is

A circular disc P of radius R is made from an iron plate of thickness t and another disc Q of radius 2R is made from an iron plate of thickness (t)/(2) . The relation between their moments of inertia I_(p) and I_(Q) about their natural axes is