If the mass of the sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following statement will not be correct?
1. | Rain drops would drop faster. |
2. | Walking on the ground would become more difficult. |
3. | Time period of a simple pendulum on the earth would decrease. |
4. | 'g' on earth would not change. |
If the acceleration due to gravity at a height 1 km above the earth is similar to a depth d below the surface of the earth, then:
1. d=0.5 km
2. d=1 km
3. d=1.5 km
4. d=2 km
Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by:
(a)
(b)
(c)
(d)
Starting from the centre of the earth, having radius \(R,\) the variation of \(g\) (acceleration due to gravity) is shown by:
1. | 2. | ||
3. | 4. |