| 1 |
The earth also completes its one revolution about its axis in. |
- A. 1 Hours
- B. 6 Hours
- C. 13 Hours
- D. 24 Hours
|
| 2 |
At the surface of the earth value of 'g' is measured by using formula: |
- A. g=GMe/R
- B. g = GMe/R<sup>2</sup>
- C. g = 2GMe/R<sup>2</sup>
- D. g = GMe/2 R
|
| 3 |
The orbital velocity of a satellite revolving at height 'h' above the surface of Earth is given by |
|
| 4 |
Value of g increases with the |
- A. Increases in mass of the body
- B. Increase in altitude
- C. Decreases in altitude
- D. None of the above
|
| 5 |
Orbital velocity v<sub>o</sub> = |
- A. √gR
- B. √RG
- C. gR
- D. gR<sup>2</sup>
|
| 6 |
The value of g on moon's surface is 1.6 ms-2. What will be the weight of a 100 kg body on the surface of the moon? |
- A. 100 N
- B. 160 N
- C. 1000 N
- D. 1600 N
|
| 7 |
The value of 'g' is greater at: |
- A. Moon
- B. Hills
- C. Sea leavel
- D. Desert
|
| 8 |
The altitude of geostationary orbits in which communication satellites are launched above the surface of the Earth is |
- A. 850 km
- B. 1000 km
- C. 6400 km
- D. 42,300 km
|
| 9 |
The value of g on moon's surface is 1.6 ms<sup>-2</sup>. what will be the weight of a 100 kg body on the surface of the moon? |
- A. 100 N
- B. 160 N
- C. 1000 N
- D. 1600 N
|
| 10 |
Weight of the body when we increase its height from earth's surface. |
- A. Increase
- B. Decrease
- C. Remain constant
- D. None
|
