A circular disc `X` of radius `R` is made from an iron plate of thickness `t`,
Channel: Doubtnut
Date: 02/08/2020

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