JEE Main 2026 — Rotational Motion Question with Solution
JEE Main 2026 (21 January Shift 1)
Question
Two identical thin rods of mass and length are connected as shown in figure. Moment of inertia of the combined rod system about an axis passing through point and perpendicular to the plane of the rods is . The value of is .
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Show full solutionCorrect answer: 17
Correct answer
17
Step-by-step explanation
For vertical rod with axis at end P:
For horizontal rod centered at distance L from P:
Total:
For horizontal rod centered at distance L from P:
Total:
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This is a previous-year question from JEE Main 2026, 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.