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A circular disc A of radius r is made fr...

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t/4. The relation between the moments of inertia `I_A and I_B` is

A

`I_AgtI_B`

B

`I_A=I_B`

C

`I_AltI_B`

D

depends on the actual values of t and r

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The correct Answer is:
C
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HC VERMA-ROTATIONAL MECHANICS-Objective 1
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  10. A body having its centre of mass at the origin has three of its partic...

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  11. A cubical block of mass M and edge a slides down a rougg inclined plan...

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  15. A wheel of radius 20 cm is pushed ot move it on a rough horizontal sur...

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  16. The angular velocity of the engine (and hence of the wheel) on a scoot...

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  17. A solid sphere a hollow sphere and a disc all having same mass and rad...

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