| 1 |
Value of g on mercury is ___________ ms<sup>-2</sup>. |
- A. 25.94
- B. 3.7
- C. 8.87
- D. 1.62
|
| 2 |
The radius R of the earth is: |
- A. 6 x 10<sup>18 </sup>m
- B. 6.4 x 10<sup>6</sup>m
- C. 6.4 x 10<sup>8</sup>m
- D. 6.4 x 10<sup>12</sup>m
|
| 3 |
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. 42300 km
|
| 4 |
Moon is nearly _________ km away from earth. |
- A. 6 x 10<sup>24</sup>
- B. 380000
- C. 199.62 km
- D. 30000
|
| 5 |
Everybody in the universe attracts other body with a force which is |
- A. Directly proportional to the product of their masses
- B. Inversely proportional to the product of their masses
- C. Directly proportional to the distance between them
- D. Directly proportional to the square of the distance between them
|
| 6 |
Value of 'g' on surface of moon is: |
- A. 1.62 ms<sup>-2</sup>
- B. 3.7 ms<sup>-2</sup>
- C. 9.2 ms<sup>-2</sup>
- D. 10 ms<sup>-2</sup>
|
| 7 |
The mass of a body is 1 kg, its mass in deep space is : |
- A. 1 Kg
- B. 0.5 Kg
- C. 0.25 kg
- D. 0
|
| 8 |
Moon is nearly km away from the Earth: |
- A. 3,80,000 km
- B. 3800 km
- C. 3,80 km
- D. 38 km
|
| 9 |
The earth also completes its one revolution about its axis in. |
- A. 1 Hours
- B. 6 Hours
- C. 13 Hours
- D. 24 Hours
|
| 10 |
Mass of earth is approximately _________ |
- A. 3.7 x 10<sup>24</sup> kg
- B. 25.94 kg
- C. 6.0 x 10<sup>22</sup>kg
- D. 6 x 10<sup>24</sup>kg
|
