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The moment of inertia of a circular disc...

The moment of inertia of a circular disc of mass `M` and radius `R` about an axis passing thrugh the center of mass is `I_(0)`. The moment of inertia of another circular disc of same mass and thickness but half the density about the same axis is

A

`(I_(0))/(8)`

B

`(I_(0))/(4)`

C

`8I_(0)`

D

`2I_(0)`

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To solve the problem, we need to determine the moment of inertia of a second circular disc that has the same mass and thickness as the first disc but has half the density. ### Step-by-Step Solution: 1. **Understand the Moment of Inertia of the First Disc**: The moment of inertia \( I_0 \) of the first circular disc (mass \( M \), radius \( R \)) about an axis through its center of mass is given by the formula: \[ I_0 = \frac{1}{2} M R^2 ...
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CP SINGH-ROTATIONAL MOTION-Exercise
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  17. A rod of lengthL and mass M(0) is bent to form a semicircular ring as ...

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  18. A thin wire of length L and uniform linear mass density rho is bent in...

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