universe & solar system section 9 MCQ Questions & Answers Detailed Explanation

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The following question based on Universe, solar system and Astronomy topic of indian geography mcq

Questions : Among the following, the celestial body farthest from the Earth is

(a) Neptune

(b) Pluto

(c) Uranus

(d) Saturn

The correct answers to the above question in:

Answer: (a)

Pluto, formal designation 134340 Pluto, is the second-most-massive known dwarf planet in the Solar System (after Eris) and the tenth-most-massive body observed directly orbiting the Sun.

Originally classified as the ninth planet from the Sun, Pluto was recategorized as a dwarf planet and plutoid owing to the discovery that it is only one of several large bodies within the Kuiper belt.

Like other members of the Kuiper belt, Pluto is composed primarily of rock and ice and is relatively small, approximately one-sixth the mass of the Earth’s Moon and one-third its volume. It has an eccentric and highly inclined orbit that takes it from 30 to 49 AU (4.4–7.4 billion km) from the Sun. This causes Pluto to periodically come closer to the Sun than Neptune. Pluto gets as close as 4.44 billion km.

But its orbit is so elliptical that it gets out to a distance of 7.38 billion km. In fact, there are times in Pluto’s orbit when Neptune passes it. Then Neptune really is the farthest planet from the Sun.

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Read more universe solar system astronomy Based Indian Geography Questions and Answers

Question : 1

On which planet would one witness sunrise in the west?

a) Saturn

b) Mercury

c) Venus

d) Jupiter

Answer: (c)

The direction of the sunrise depends upon the direction of the rotation of the earth on its axis.

Any planet rotation on its axis from west to east will experience the sunrise in the east and vice versa. Venus rotates on its axis from east to west and thus experiences sunrise in the west.

Question : 2

The planet that takes 88 days to make one revolution of the sun is :

a) Jupiter

b) Mars

c) Saturn

d) Mercury

Answer: (d)

In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets.

It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.

Question : 3

Which one of the following is called terrestrial planet?

a) Mars

b) Saturn

c) Earth

d) Mercury

Answer: (d)

Mercury is called terrestrial planet. There are four terrestrial planets in our Solar System: Mercury, Venus, Earth, and Mars.

Question : 4

The group of stars arranged in a definite pattern is called

a) Andromeda

b) Solar system

c) Constellation

d) Milky way

Answer: (c)

The group of stars arranged in a definite pattern is called a constellation. In modern astronomy, a constellation is an internationally defined area of the celestial sphere.

These areas are grouped around asterisms, which are patterns formed by prominent stars within apparent proximity to one another on Earth’s night sky.

Question : 5

Which of the following is the nearest star of Earth?

a) Rigel

b) Vega

c) Sun

d) Sirius

Answer: (c)

Question : 6

How much of the total surface area of the moon is never visible from the earth

a) 53 per cent

b) 59 per cent

c) 47 per cent

d) 41 per cent

Answer: (d)

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