A circular disc … of radius … is made from an iron plate of thickness … and another disc … of radius … … is made from an iron plate of thickness … Then the relation between the moment of inertia … and … is

Option D. We know that density …

Rotational Motion

JEE Main 2003 · Annual, Paper 1 · Q8078

PhysicsMedium49×since 2002Q8078

A circular disc

X

of radius

R

is made from an iron plate of thickness

t,

and another disc

Y

of radius

4

R

is made from an iron plate of thickness

{t \over 4}.

Then the relation between the moment of inertia

{I_X}

and

{I_Y}

JEE Main 2003 · Annual, Paper 1 · Q8078

PhysicsMedium49×since 2002Q8078

A circular disc

X

of radius

R

is made from an iron plate of thickness

t,

and another disc

Y

of radius

4

R

is made from an iron plate of thickness

{t \over 4}.

Then the relation between the moment of inertia

{I_X}

and

{I_Y}