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The speed of revolution of the Earth around the Sun is
- a)maximum at Perihelion.
- b)minimum at Perihelion.
- c)maximum at Aphelion.
- d)equal at Aphelion and Perihelion.
Correct answer is option 'A'. Can you explain this answer?
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The speed of revolution of the Earth around the Sun isa)maximum at Per...
Explanation:
Perihelion and Aphelion:
- Perihelion is the point in the orbit of a planet or other celestial body where it is nearest to the Sun.
- Aphelion is the point in the orbit of a planet or other celestial body where it is farthest from the Sun.
Speed of Revolution:
- The speed of revolution of the Earth around the Sun is not constant throughout the orbit.
- According to Kepler's Second Law of Planetary Motion, the speed of a planet in its orbit varies in such a way that a line segment joining the planet and the Sun sweeps equal areas in equal intervals of time.
- This means that the speed of the Earth is maximum when it is closest to the Sun (Perihelion) and minimum when it is farthest from the Sun (Aphelion).
Conclusion:
- Therefore, the speed of revolution of the Earth around the Sun is maximum at Perihelion.
- This is because the gravitational force of the Sun is strongest at Perihelion, causing the Earth to move faster in its orbit around the Sun.
Perihelion and Aphelion:
- Perihelion is the point in the orbit of a planet or other celestial body where it is nearest to the Sun.
- Aphelion is the point in the orbit of a planet or other celestial body where it is farthest from the Sun.
Speed of Revolution:
- The speed of revolution of the Earth around the Sun is not constant throughout the orbit.
- According to Kepler's Second Law of Planetary Motion, the speed of a planet in its orbit varies in such a way that a line segment joining the planet and the Sun sweeps equal areas in equal intervals of time.
- This means that the speed of the Earth is maximum when it is closest to the Sun (Perihelion) and minimum when it is farthest from the Sun (Aphelion).
Conclusion:
- Therefore, the speed of revolution of the Earth around the Sun is maximum at Perihelion.
- This is because the gravitational force of the Sun is strongest at Perihelion, causing the Earth to move faster in its orbit around the Sun.
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The speed of revolution of the Earth around the Sun isa)maximum at Perihelion.b)minimum at Perihelion.c)maximum at Aphelion.d)equal at Aphelion and Perihelion.Correct answer is option 'A'. Can you explain this answer?
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