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Four indentical thin rods each of mass M and length l, form a square frame. Momentum of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is:
Options
(a) 2/3 MI²
(b) 13/3 MI²
(c) 1/3 MI²
(d) 4/3 MI²
Correct Answer:
4/3 MI²
Explanation:
Moment of inertia of oa thin rod of length l about an axis passing through centre and perpendicular to the rod = 1/12 MI².
Thus, moment of inertia of the frame.
MI² / 12 + MI² / 4 = 4 MI² / 12 = MI² / 3
Total M.I. = 4/3 MI²
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Topics: Motion of system of Particles and Rigid Body
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is WRONG in the context of X-rays generated
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
- The breaking stress of a wire depends upon
- A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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