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Two discs of moment of inertia l₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating along collinear axes passing through their centre of mass and perpendicular to their plane.If the two are made to rotate combindly along the same axis the rotational KE of system will be
Options
(a) l₁?￢ﾂﾁ + I₂?￢ﾂﾂ / 2(l₁ + I₂)
(b) (l₁ + I₂)(?￢ﾂﾁ+ ?￢ﾂﾂ)² / 2
(c) (l₁?￢ﾂﾁ + I₂?)² / 2(l₁ + I₂)
(d) None of these
Correct Answer:
(l₁?￢ﾂﾁ + I₂?)² / 2(l₁ + I₂)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A parallel beam of fast moving electrons is incident normally on a narrow slit.
- When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid
- An α-particle and a proton travel with the same velocity in a magnetic field
- A solenoid 1.5 m long and 0.4 cm in diameter possesses 10 turns per cm length
- A sample of radioactive element has a mass of 10 gram at an instant t=0.
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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