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प्रश्न
State Newton’s Universal law of gravitation.
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उत्तर
Newton’s law of gravitation: States that the gravitational force between two masses is directly proportional to the product of masses and inversely proportional to the square of the distance between the masses.
In the mathematical form, it can be written as,
`vec"F" = -("GM"_1"M"_2)/"r"^2 hat"r"`
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संबंधित प्रश्न
Choose the correct option.
The weight of a particle at the center of the Earth is _______.
The gravitational potential due to the Earth is minimum at _______.
Explain how Newton verified his law of gravitation.
Assume that you are in another solar system and provided with the set of data given below consisting of the planets’ semi-major axes and time periods. Can you infer the relation connecting semi-major axis and time period?
| Planet (imaginary) | Time period (T) (in year) | Semi-major axis (a) (in AU) |
| Kurinji | 2 | 8 |
| Mullai | 3 | 18 |
| Marutham | 4 | 32 |
| Neithal | 5 | 50 |
| Paalai | 6 | 72 |
If the masses and mutual distance between the two objects are doubled, what is the change in the gravitational force between them?
The escape velocity of a body depends upon mass as ______
The mass density of a spherical galaxy varies as `"K"/"r"` over a large distance 'r' from its center. In that region, a small star is in a circular orbit of radius R. Then the period of revolution, T depends on R as :
Who described Earth’s rotation and orbits before Newton?
What causes tides on Earth?
Why do planets follow elliptical orbits?
