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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
- When indensity of radiation is increased on a photosensitive plate, then
- A particle moving in a straight line covers half the distance with speed of 3 m/s
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- The potential of a large liquid drop when eight liquid drops are combined is 20 V.
- A capacitor is used to store 24 watt hour of energy at 1200 volt.
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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