Choose the correct answer from following options.
The angle subtended at the centre of a circle by a particle moving along the circumference in a given time is called
(a) Displacement
(b) Linear displacement
(c) Angular displacement
(d) Angular velocity
Angular displacement is negative when the rotation is:
(a) Clockwise
(b) Anti-clockwise
(c) Counter clockwise
(d) All of these
Angular displacement is a vector quantity for
(a) Small values of Δθ
(b) Very small values of Δθ
(c) Large values of Δ0
(d) Very large values of Δ0
“Grasp the axis of rotation in right hand with fingers curling in the direction of rotation; the thumb. points in the direction of angular displacement’. This is the statement of _________________________.
(a) Right hand rule
(b)Left hand rule
(c) Head to tail rule
(d) Arm lever rule
Angular displacement is expressed by the unit of ___________________.
(a) Degrees
(b) Revolution
(c) Radian
(d)All of these.
The SI unit of angular displacement is ______________.
(a) Degrees
(b) Revolution
(c) Radian
(d) Steradia
π/2 radian angle is subtended at the center of circle of 2 m radius. The length of arc is ____________.
(a) πm
(b) π/2m
(c) π/4m
(d) 2πm
5 revolution =
(a) 0°
(b) 180°
(c) 360°
(d)1800°
4π rad =
(a) 1 revolution
(b) 2 revolutions
(c) 3 revolutions
(d) 4 revolutions
1 rad =
(a) 0°
(b) 45°
(c) 57.3°
(d) 90°
The rate of change of angular displacement is called ________________.
(a) Angular speed
(b) Angular velocity
(c) Angular acceleration
(d) Moment of inertia