Nature of Physical World and Measurement
Laws of Motion
Work, Energy and Power
Motion of System of Particles and Rigid Bodies
Properties of Matter
Heat and Thermodynamics
Kinetic Theory of Gases
- Gravitational field
- Superposition principle for Gravitational field
- Gravitational Potential Energy
- Gravitational potential energy near the surface of the Earth
- Gravitational potential V(r)
If the masses of the Earth and Sun suddenly double, the gravitational force between them will ___________.
A planet moving along an elliptical orbit is closest to the Sun at distance r1 and farthest away at a distance of r2. If v1 and v2 are linear speeds at these points respectively. Then the ratio `"v"_1/"v"_2` is
If the distance between the Earth and Sun were to be doubled from its present value, the number of days in a year would be ___________.