| 1 |
The first man who gave the idea of gravity: |
- A. Hero
- B. Einstein
- C. Newton
- D. Faraday
|
| 2 |
Earth's gravitational force of attraction vanishes at |
- A. 6400 km
- B. Infinity
- C. 42300 km
- D. 1000 km
|
| 3 |
Value of g on mercury is ___________ ms<sup>-2</sup>. |
- A. 25.94
- B. 3.7
- C. 8.87
- D. 1.62
|
| 4 |
The value of g is maximum at: |
- A. Mountains
- B. Maximum height
- C. Surface of earth
- D. At 2R
|
| 5 |
The value of 'g' is maximum |
- A. At mountains
- B. At plains
- C. At the surface of earth
- D. At sea level
|
| 6 |
S.I unit of G is: |
- A. Nm<sup>-2</sup> kg<sup>2</sup>
- B. Nm<sup>-2</sup>Kg<sup>-2</sup>
- C. Nm<sup>2</sup>kg<sup>-2</sup>
- D. Nm<sup>2</sup>kg<sup>-3</sup>
|
| 7 |
The radius R of Earth is |
- A. 6.4 x 106 m
- B. 6.4 x 108 m
- C. 6.4 x 1010 m
- D. 6.4 x 1012 m
|
| 8 |
Value of g increases with the: |
- A. Increase in mass of the body
- B. Increases in altitude
- C. decrease the altitude
- D. None of the above
|
| 9 |
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
|
| 10 |
The weight of a body is 100 N its weight in deep space is : |
- A. 100 N
- B. 50 N
- C. 25 N
- D. 0 N
|
