A thin horizontal circular disc

Question:

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 its other end. During the journey of the insect, the angular speed of the disc :-

  1. continuously increases

  2. first increases and then decreases

  3. remains unchanged

  4. continuously decreses


Correct Option: , 2

Solution:

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