Tag: sunita's experience in space

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

The space crafts cannot land on Venus because it is the ___________.

  1. smallest planet

  2. coldest planet

  3. hottest planet

  4. densest planet
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Venus is the hottest planet in the solar system due to its thick atmosphere and runaway greenhouse effect, making it impossible for space crafts to land and survive.

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

The surface temperature of Mercury varies from :

  1. $30 ^\circ C$ to $-18 ^\circ C$

  2. $100 ^\circ C$ to $-183 ^\circ C$

  3. $427 ^\circ C$ to $-183 ^\circ C$

  4. $80 ^\circ C$ to $ 0 ^\circ C$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The surface temperature of mercury varies from around $800F$ to $-290F$ or $427°C$ to $-180°C$.

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

Out of the following, which planet will take the most time to make 1 revolution around the Sun?

  1. Mercury

  2. Earth

  3. Jupiter

  4. Saturn
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The time period of revolution depends on the radius of the orbit. Greater the radius, greater is the period. Since Saturn is the farthest planet from the sun, its radius is the greatest and so is the time period.