A circular disc `X` of radius `R` is made from an iron plate of thickness `t`, and another plate `Y` of radius `4R` is made from an iron plate of thickness `t//4`. The ratio between moment of inertia `I_(Y)//I_(X)` 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 A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t//4 . The relation between the moments of inertia I_(A) and I_(B) is (about an axis passing through centre and perpendicular to the disc)

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 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 A of radius r is made from an iron plate of thickness t and another circular idsc B of radius 4 r is made from another iron plate of thickness t/4. The relation between the moments of inertia I_(1) and I_(2) B 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

A circular disc A of radius r is made from aniron plate of thickness t and nother circular disc B of rdius 4r is made fro an iron plate of thickness t/4. The relatiion between the moments of inertia I_A and I_B is