JEE Main 2020PhysicsRotational MotionMoment Of InertiamediumNumerical

JEE Main 2020Rotational Motion Question with Solution

From: JEE Main 2020 (Online) 4th September Morning Slot

Question

ABC is a plane lamina of the shape of an equilateral triangle. D, E are mid points of AB, AC and G is the centroid of the lamina. Moment of inertia of the lamina about an axis passing through G and perpendicular to the plane ABC is I0 . If part ADE is removed, the moment of inertia of the remaining part about the same axis is where N is an integer. Value of N is ______. JEE Main 2020 (Online) 4th September Morning Slot Physics - Rotational Motion Question 141 English

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Show full solutionCorrect answer: 11
Correct answer
11

Step-by-step explanation

JEE Main 2020 (Online) 4th September Morning Slot Physics - Rotational Motion Question 141 English Explanation

Let



=

and

3I + I' = I0





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About this question

This is a previous-year question from JEE Main 2020, covering the Rotational Motion chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.