| ⇦ | 
| ⇨ |
A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular speed. Then its radius of gyration will
Options
(a) Increase
(b) Decrease
(c) Remain unchanged
(d) Nothing definite can be said
Correct Answer:
Decrease
Explanation:
Iω is conserved. If a small piece is broken. I will be less and ω will increase But I = mk², as I is less, m is small, k² also will be small. The radius of gyration also will decrease.
Related Questions: - If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio
- The resistance in the two arms of the meter bridge are 5Ω and RΩ, respectively
- Energy in a current carrying coil is stored in the form of
- The term liquid crystal refers to a state that is intermediate between
- The energy required to charge a parallel plate condenser of plate separation d
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
- If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio
- The resistance in the two arms of the meter bridge are 5Ω and RΩ, respectively
- Energy in a current carrying coil is stored in the form of
- The term liquid crystal refers to a state that is intermediate between
- The energy required to charge a parallel plate condenser of plate separation d
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
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Due to decrease in the mass of the flywheel M.I. decreases. To conserve angular momentum angular velocity of flywheel increases.