Question

Two lenses(concave and convex) have same mass and and radii which will have greater moment of inertiawhen rotating about an axis perpendicular to the plane nad passing through the centre of mass?

Answer 1

@Callisto @.Sam. @UnkleRhaukus

Answer 2

the in second case (the convex lens) more of the mass is a shorter radius from the CM compared to in the concave lens

Answer 3

Both have same radii..

Answer 4

i mean for the average volume element

Answer 5

So convex will have greater moment of inertia

Answer 6

i dont think so