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Thin uniform rod of length L, cross-sectional area A and density ρ is rotated about an axis passing through centre and perpendicular to its length with angular velocity ?. What will be its rotational energy?
Options
(a) ρAL³?ￂﾲ/24
(b) ρAL²?ￂﾲ/12
(c) ρAL³?ￂﾲ/12
(d) ρA²L?ￂﾲ/24
Correct Answer:
ρAL³?ￂﾲ/24
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion of system of Particles and Rigid Body
(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- A thermocouple of negligible resistance produces an e.m.f. of 40 µV/⁰C in the linear range
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- Two racing cars of masses m₁ and m₂ are moving in circles of radii
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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