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From a uniform wire, two circular loops ...

From a uniform wire, two circular loops are made (`i`) `P` of radius `r` and (`ii`) `Q` of radius `nr`. If the moment of inertia of `Q` about an axis passing through its center and perpendicular to tis plane is `8` times that of `P` about a similar axis, the value of `n` is (diameter of the wire is very much smaller than `r` or `nr`)

A

8

B

6

C

4

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -ROTATIONAL MOTION-Practice Problems (Problems based on moment of inertia)
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  12. A thin wire of length L and uniform linear mass density rho is bent in...

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  13. If a solid sphere and solid cylinder of same mass and radius rotate ab...

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  14. Two point masses of 0.3 kg and 0.7kg are fixed at the ends of a rod of...

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  15. A circular disc A of radius r is made from an iron plate of thickness ...

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  16. A thin wire of length l and mass m is bent in the form of a semicircle...

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  17. If l(1) is the moment of inertia of a thin rod about an axis perpendic...

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