| 1 |
Time period of geostationary satellite of radius 'R' is |
- A. 1 hour
- B. 48 min
- C. 1 day
- D. 1 month
|
| 2 |
INTELSAT VI satellite operates at microwave frequencies of. |
- A. 2,4,6,10 GHz
- B. 4,6,11 and 14 MHz
- C. 4,6,11 and 14 GHz
- D. 2,4,6 AND 14 GHz
|
| 3 |
The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is |
- A. 50 kgm2
- B. 100 K gm2
- C. 150 K gm2
- D. 250 K gm2
|
| 4 |
If a rocket is accelerating upward with an acceleration of 2 g, an astronaut of weight, mg in the rocket shows apparent weight. |
- A. Zero
- B. Mg
- C. 2 mg
- D. 3 mg
|
| 5 |
The direction of angular velocity is determined. |
- A. Left hands rule
- B. Head to tail rule
- C. Right hand rule
- D. General rule
|
| 6 |
Moment of inertia is measure din |
- A. Kg m2
- B. Kg m-2
- C. Rad s-1
- D. Joule second
|
| 7 |
The maximum velocity necessary to put a satellite into orbit is |
- A. 7.1 kms-1
- B. 7.3 kms-1
- C. 7.9 kms-1
- D. 8,9 kms-1
|
| 8 |
The direction of angular acceleration is |
- A. Along the axis of rotation
- B. Perpendicular to the axis of rotation
- C. Opposite to axis of rotation
- D. None of these
|
| 9 |
The time rate of change of angular displacements called. |
- A. Linear velocity
- B. Linear speed
- C. Angular velocity
- D. Angular speed
|
| 10 |
A man of 1 kg is freefalling. The force of gravity is |
- A. 1 N
- B. 9.8 N
- C. 0.5 N
- D. Zero
|