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A thin and circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity ?.If another disc of same dimensions but of mass M/4 is placed gently on the first disc coaxially, then the new angular velocity of the system is
Options
(a) 5 /4 ω
(b) 2 / 3 ω
(c) 4 / 5 ω
(d) 3 / 2 ω
Correct Answer:
4 / 5 ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the difference between soft and hard X-ray?
- A spherical drop of mercury having a potential of 2.5 v is obtained as a result
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
- In Young’s double slit experiment, the phase difference between the two waves
- The voltage of an a.c.supply varies with time (t) as V=120 sin 100 πt the maximum voltage
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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