Question

Which of the following is not a unit of angular displacement?

• A. Radians
• B. Degrees
• C. Metres
• D. Revolutions

Answer 1

The correct option is C

Metres

The correct option is C) Metres.

Radians, degrees, and revolutions are the units of angular displacement.

Angular displacement is defined as the angle through which an object moves on a circular path. It is the angle between the initial and final positions measured in radians.

Following are the ways to express angular displacement:

$\theta =\frac{s}{r}$

Where,

• θ is the angular displacement
• s is the distance travelled
• r is the radius of the circle

(θf – θi) = angular displacement