Mass per unit area of a circular disc of radius a depends on the distance r from its centre as σ (r) = A + Br. The moment of inertia of the disc about the axis, perpendicular to the plane and assing through its centre is:

Rotational Motion: JEE Main 2020 Physics question

JEE Main 2020 · 7 Jan, Evening shift · Q8097

JEE Main 20207 Jan, Evening shiftPhysicsMediumRotational Motion140× since 2002

Mass per unit area of a circular disc of radius

a

depends on the distance r from its centre as

\sigma \left( r \right)

= A + Br . The moment of inertia of the disc about the axis, perpendicular to the plane and assing through its centre is:

JEE Main 2020 Rotational Motion Question with Solution (7 Jan Evening shift, Q8097) | JEE Arc

JEE Main 2020 · 7 Jan, Evening shift · Q8097

JEE Main 20207 Jan, Evening shiftPhysicsMediumRotational Motion140× since 2002

Mass per unit area of a circular disc of radius

a

depends on the distance r from its centre as

\sigma \left( r \right)

= A + Br . The moment of inertia of the disc about the axis, perpendicular to the plane and assing through its centre is: