Tag: planets

Questions Related to planets

A ring system around planet Uranus was discovered by:

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Phobos and Deimos

  2. Prof.J.C.Bhattacharya and K.Kuppuswamy

  3. William Herschel

  4. Galileo

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Correct Option: C
Explanation:

Ring system around planet Uranus is discovered by William Herschel detailing his observation of Uranus in ${ 18 }^{ th }$ century

Definitive discovery was made by  James L. Elliot, Edward W. Dunham and Jessica Mink.

The inclination of orbit to ecliptic is maximum for planet _________ and minimum for planet _______.

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Mercury and Earth

  2. Mercury and Venus

  3. Venus and Earth

  4. Earth and Saturn

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Correct Option: A

Planets are divided in to two groups based on their characteristic.

Group - 1 Group - 2
- Structure of planets resemble to earth - Structure of planets resembles Jupiter
- They have fewer natural satellites - They have large number of natural satellites 
- They have thin atmosphere - Rings are seen around planets.

Which of the following are included in Group - 2?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Mercury and Venus

  2. Saturn and Mercury

  3. Jupiter and Saturn

  4. Jupiter and Venus

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Correct Option: C
Explanation:

All the planets among Jupiter, Saturn, Neptune and Uranus all in the second group.


Hence, for among given options the pair Jupiter and Saturn fall in second group.

Answer-(C)

Asteroid or planetoids are _____________.

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. shining stars near the Earth

  2. shooting stars

  3. meteorites

  4. a swarm of small bodies revolving round the sun between the orbits of Mars and Jupiter

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Correct Option: D
Explanation:
  • Asteroids and planetoids are small bodies of varying sizes ranging from few kilometres to few hundred kilometres of diameter. They are found in a large number in a belt between Mars and Jupiter and they revolve around the sun like planets but are not large enough to be called planets.
  • Sometimes very small asteroids enter into earth's atmosphere. If these bodies reach the earth's surface then they are called meteorites. Most of the time they get burned up due to the friction caused by the atmosphere of the earth and thus appear like shooting stars.
  • Hence option D is correct.

Asteroids revolve around the Sun between the orbits of __________.

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Earth and Jupiter

  2. Venus and Jupiter

  3. Uranus and Jupiter

  4. Mars and Jupiter

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Correct Option: D