Question

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

Answer 1

Correct Answer - d
When a disc rotates with uniform angular velocity, angular acceleration of the disc is zero. Hence, option(d) is not true.