## Solar System

1. Which one of the following is the largest satellite in solar system ?
1. Ganymede
2. Titan
3. Europa
4. Triton
1. Ganymede is the largest satellite in solar system. Ganymede is a satellite of Jupiter and the largest moon in the Solar System. It is the seventh moon and third Galilean satellite outward from Jupiter. Completing an orbit in roughly seven days, Ganymede participates in a 1:2:4 orbital resonance with the moons Europa and Io, respectively. It has a diameter of 5,268 km (3,273 mi), 8% larger than that of the planet Mercury, but has only 45% of the latter's mass.

##### Correct Option: A

Ganymede is the largest satellite in solar system. Ganymede is a satellite of Jupiter and the largest moon in the Solar System. It is the seventh moon and third Galilean satellite outward from Jupiter. Completing an orbit in roughly seven days, Ganymede participates in a 1:2:4 orbital resonance with the moons Europa and Io, respectively. It has a diameter of 5,268 km (3,273 mi), 8% larger than that of the planet Mercury, but has only 45% of the latter's mass.

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1. Who discovered the solar system ?
1. Aryabhatta
2. Newton
3. Copernicus
4. Kepler
1. Copernicus discovered the solar system. Nicolaus Copernicus was a Renaissance mathematician and astronomer who formulated a heliocentric model of the universe which placed the Sun, rather than the Earth, at the center.

##### Correct Option: C

Copernicus discovered the solar system. Nicolaus Copernicus was a Renaissance mathematician and astronomer who formulated a heliocentric model of the universe which placed the Sun, rather than the Earth, at the center.

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1. The largest planet in our solar system is
1. Earth
2. Uranus
3. Jupiter
4. Saturn
1. The largest planet in our solar system is Jupiter. Jupiter is the fifth planet from the Sun and the largest planet in the Solar System. It is a gas giant with mass one-thousandth of that of the Sun but is two and a half times the mass of all the other planets in the Solar System combined.

##### Correct Option: C

The largest planet in our solar system is Jupiter. Jupiter is the fifth planet from the Sun and the largest planet in the Solar System. It is a gas giant with mass one-thousandth of that of the Sun but is two and a half times the mass of all the other planets in the Solar System combined.

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1. Cycle of sun spots is
1. 9 years
2. 10 years
3. 11 years
4. 12 years
1. 11 years

##### Correct Option: C

11 years

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1. The Earth becomes minimum distance from the sun ?
1. 3rd January
2. 4th July
3. 22nd March
4. 21st September
1. The Earth shows minimum distance from the Sun on 3rd January.

##### Correct Option: A

The Earth shows minimum distance from the Sun on 3rd January.

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