Question

ans this ques of physics class 12 level with explanation

Answer 1

Moment of inertia of disc about and axis passing through centre and perpendicular to plane = MR²/2

Useing perpendicular axis theorem,

Ix + Iy = Iz

Ix = Iy = MR²/4

Moment of inertia of disc about and axis passing through centre and perpendicular to plane = Ix = MR²/4

Using Parallel Axis Theorem,

I = I(cm) + Md²

I = MR²/4 + MR²  = 5MR²/4

Answer 2

Answer:

Moment of inertia of disc about and axis passing through centre and perpendicular to plane = MR²/2

Useing perpendicular axis theorem,

Ix + Iy = Iz

Ix = Iy = MR²/4

Moment of inertia of disc about and axis passing through centre and perpendicular to plane = Ix = MR²/4

Using Parallel Axis Theorem,

I = I(cm) + Md²

I = MR²/4 + MR²  = 5MR²/4

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