A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An...

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A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach other end. During the journey of the insect, the angular speed of the disc
[AIEEE 2011]
(a) Remains unchanged
(b) Continuously decreases
(c) Continuously increases
(d) First increases and then decreases
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