| 1 |
The SI unit of angular displacement is. |
- A. Degree
- B. Revolution
- C. Radian
- D. Rotation
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| 2 |
One revolution is equal to. |
- A. 90<sup>o</sup>
- B. 180<sup>o</sup>
- C. 360<sup>o</sup>
- D. 270<sup>o</sup>
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| 3 |
Time period of geostationary satellite of radius 'R' is |
- A. 1 hour
- B. 48 min
- C. 1 day
- D. 1 month
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| 4 |
The angle between circumference of a circle and center is |
|
| 5 |
The orbital angular momentum is associated with the motion of a body along |
- A. Straight path
- B. Circular path
- C. Curved path
- D. Along any path
|
| 6 |
In case of planets centripetal force is provided by |
- A. Coulomb's force
- B. Electrostatic force
- C. Gravitational force
- D. Magnetic force
|
| 7 |
The minimum number of correctly positioned communication satellites to cover whole populated earth is. |
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| 8 |
When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by |
- A. Mass of body
- B. Velocity of a body
- C. Tension in the string
- D. Centripetal acceleration
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| 9 |
The rate of change of angular velocity is called |
- A. Angular velocity
- B. Angular acceleration
- C. Angular displacement
- D. Angular speed
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| 10 |
The time rate of change of angular displacements called. |
- A. Linear velocity
- B. Linear speed
- C. Angular velocity
- D. Angular speed
|