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Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Medium2 minPYQ_2022

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The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter isNEET 2022 (Phase 1)

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Answer:

Solution:

For a thin uniform disc.

Radius of gyration

Case 1: $K_{1} = \frac{R}{\sqrt{2}}$

Case 2: $K_{2} = \frac{R}{2}$

$Q \Rightarrow \frac{K_{1}}{K_{2}} = ?$

$∴ \frac{K_{1}}{K_{2}} = \frac{\frac{R}{\sqrt{2}}}{\frac{R}{2}}$ $= \sqrt{2}$

Stream:NEETSubject:PhysicsTopic:RotationSubtopic:Calculation of M.I.

⏱ 2mℹ️ Source: PYQ_2022

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