When a disc rotates with uniform angular velocity, which of the following is not true [NCERT Exe...

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When a disc rotates with uniform angular velocity, which of the following is not true
[NCERT Exemplar]
(a) The sense of rotation remains same
(b) The orientation of the axis of rotation remains same
(c) The speed of rotation is non-zero and remains same
(d) The angular acceleration is non-zero and remains same
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