RE-NEET 2024 Physics Moment of Inertia MCQ Question with Solution

The radius of gyration of a solid sphere of mass 5 kg about XY is 5 m as shown in figure. The radius of the sphere $\frac{5x}{\sqrt{7}}$ m, then the value of x is:

A

5

B

$\sqrt{2}$

C

$\sqrt{3}$

D

$\sqrt{5}$

Correct Answer

Option D

Detailed Explanation

The radius of gyration k is related to the radius R of the sphere by the formula k = R/ $\sqrt{5}$ . Solving for x in $\frac{5x}{\sqrt{7}} = R/\sqrt{5}$ gives x = $\sqrt{5}$ .

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RE-NEET 2024 Physics Moment of Inertia MCQ Question

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