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प्रश्न
State Kepler’s three laws.
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उत्तर
- Law of orbits: Each planet revolves moves around the Sun in an elliptical orbit with the Sun at one of the foci of the ellipse.
- Law of area: The radial vector line joining the Sun to a planet sweeps equal areas in equal intervals of time.
- Law of period: The square of the time period of revolution of a planet around the Sun in its elliptical orbit is directly proportional to the cube of the semi-major axis of the ellipse.
T2 α a3
`"T"^2/"a"^3` = constant
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संबंधित प्रश्न
The value of acceleration due to gravity is maximum at ________.
According to Kepler’s second law, the radial vector to a planet from the Sun sweeps out equal areas in equal intervals of time. This law is a consequence of ___________.
State Newton’s Universal law of gravitation.
Explain how Newton verified his law of gravitation.
The escape velocity of a body depends upon mass as ______
The escape velocity of a body on a planet 'A' is 12 kms–1. The escape velocity of the body on another planet 'B', whose density is four times and radius is half of the planet 'A', is ______.
Which of the following statements is NOT a characteristic of gravitational force as described in the source?
Who described Earth’s rotation and orbits before Newton?
Why do planets follow elliptical orbits?
What are the correct units for the Universal Gravitational Constant (G)?
