Tag: solar system and sun

Questions Related to solar system and sun

The soil in planet Mars appears to be red in colour due to the presence of ___________.

  1. iron oxide

  2. cuprous oxide

  3. aluminium oxide

  4. silicon dioxide


Correct Option: A
Explanation:

The soil in planet Mars appears to be red in colour due to the presence of iron oxide.

Ans: Iron oxide

Red planet:Mars; hottest planet:_______.

  1. Saturn

  2. Venus

  3. Mercury

  4. Jupiter


Correct Option: B
Explanation:

Ans: Venus

The mean surface temperature of Mercury is ___________.

  1. $400K$

  2. $410K$

  3. $430K$

  4. $442.5K$


Correct Option: D

If volume of the earth is taken as $1$ unit, then volume of Saturn and Uranus are

  1. $0.814$ and $44$ units respectively

  2. $755$ units each

  3. $1.316$ and $0.054$ units respectively

  4. $44$ and $0.194$ unit respectively


Correct Option: B

Mass of Jupiter is ............  that of all the other planets combined.

  1. twice

  2. thrice

  3. four times

  4. $10$ times


Correct Option: A

According to the data available by Dec-2012 the maximum number of known moons are possessed by the planet:

  1. Jupiter

  2. Saturn

  3. both (a) and (b)

  4. Saturn only


Correct Option: A

The inclination of the axis of rotation is maximum for planet _____ and minimum for planet _______.

  1. Mercury and Uranus

  2. Uranus and Mercury

  3. Uranus and Venus

  4. Venus and Mercury


Correct Option: A
Explanation:

The inclination of axis of rotation is maximum for planet Mercury and minimum for Uranus. 

Ans: Mercury and Uranus

Many planets exhibit a special phenomenon called aurora at its poles due to a common property called

  1. ionisation

  2. magnetic fields

  3. electric fields

  4. chemical reactions


Correct Option: B

The average temperature is maximum for the planet ___________.

  1. Venus

  2. Mercury

  3. Jupiter

  4. Earth


Correct Option: A
Explanation:

Ans: Venus

All planets, asteroids, and sun except few exceptions such as _______ and ________ rotate in counterclockwise directions.

  1. mars and venus

  2. venus and uranus

  3. uranus and saturn

  4. saturn and venus


Correct Option: B
Explanation:

Ans: Venus and Uranus