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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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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a star converts all helium in its core to oxygen, then energy released per oxygen
- If the focal length of a concave mirror is 50 cm, then where should the object
- A body revolved around the sun 27 times faster than the earth. What is the ratio
- The total kinetic energy of a body of mass 10 kg and radius 0.5 m moving with a velocity
- Two lenses of power 15 D and -3 D are placed in contact.
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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