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Question

Question: If I<sub>1</sub> is the moment of inertia of a thin rod about an axis passing through its end and pe...

If I1 is the moment of inertia of a thin rod about an axis passing through its end and perpendicular to its length and I­2 is the moment of inertia of the ring formed by bending the rod about its diameter, then

A

I1 : I2 = π2

B

I1 : I2 = 4π2 : 3

C

I1 : I2 = π2 : 4

D

I1 : I2 = 8π2 : 3

Answer

I1 : I2 = 8π2 : 3

Explanation

Solution

I1 = , I2 =

= (4) is the correct.