The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?

Related Mcqs:

1. The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is__________________?

   A. 1 N
   B. 10 N
   C. 100 N
   D. none

2. When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?

   A. 5m/s, 1m/s
   B. 3m/s, 3m/s
   C. 6m/s, 1m/s
   D. 4m/s, 2m/s

3. If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________?

   A. 4 rad. S-1
   B. 5 rad. S-1
   C. 1.6 rad. S-1
   D. 2.8 ms-1

4. hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?

   WA. 180°
   B. 0°
   C. 90°
   D. 45°

5. When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?

   A. 2π
   B. π/2
   C. π
   D. 20π

6. The angular speed for daily rotation of the earth in rad S-1 is______________?

   A. 7.3 x 10 radians/second
   B. 7.3 x 5 radians/second
   C. 3.7 x 10 7.3 x 5 radians/second
   D. 7.3 x 10-5 radians/second

7. The angular speed of seconds hand of a watch in rads-1 is______________?

   A. π
   B. π/2
   C. π/30
   D. π/180

8. One radian is equal to______________?

   A. 67.3°
   B. 57.3°
   C. 87.3°
   D. 60°

9. Optical active crystals rotates the __________________?

   A. vibrating plane
   B. polarization plane
   C. diffraction plane
   D. interference plane

10. The relation between linear and angular acceleration is______________?

    A. a = a x r
    B. a = r x a
    C. a = a x r
    D. r = a x a