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A coin of mass m and radius r having moment of inertia I about the axis passes through its centre and perpendicular to its plane. It is beaten uniformly to form a disc of radius 2r. What will be the moment of inertia about the same axis?
Options
(a) I
(b) 2I
(c) 4I
(d) 16I
Correct Answer:
4I
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
- With what minimum acceleration can a fireman slide down a rope while breaking
- A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by
- The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected
- The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
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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