MCQ

upsc-p1-geography-universe-solar-system MCQ - Practice Questions with Answers

Solve 4 upsc-p1-geography-universe-solar-system questions for RAS/RPSC preparation.

Practice questions

Q1Arrange the following in order from the smaller spatial hierarchy to the larger spatial hierarchy: A. Local Group B. Solar System C. Milky Way D. Stellar neighbourhood Select the correct answer using the code given below.

A B-C-D-A

B D-B-C-A

C B-D-A-C

D B-D-C-A

Explanation

The Solar System lies within its stellar neighbourhood, which lies within the Milky Way. The Milky Way is a member of the Local Group. Therefore, the smaller-to-larger order is B-D-C-A, shown in option D.

Q2With reference to the Universe and astronomical evidence, consider the following statements: 1. The Big Bang model describes the expansion of space itself, not an explosion into pre-existing empty space. 2. A light-year is a unit of length. 3. The Solar System lies at the centre of the Milky Way. Which of the statements given above are correct? Select the correct answer using the code given below.

A 1 only

B 1 and 2 only

C 2 and 3 only

D 1, 2 and 3

Explanation

Statements 1 and 2 are correct. The standard model concerns the expansion of space, and a light-year is the distance travelled by light in one year. The Solar System is within the Milky Way but is not at its centre, so Statement 3 is incorrect.

Q3Consider the following statements about eclipses: 1. Every new Moon produces a solar eclipse. 2. A solar eclipse requires the Sun, Moon and Earth to align near the lunar orbital nodes. Which one of the following is correct?

A Statement 1 only

B Statement 2 only

C Both Statements 1 and 2

D Neither Statement 1 nor Statement 2

Explanation

Statement 2 only is correct. A new Moon is necessary for a solar eclipse, but the Moon's inclined orbit means that node alignment is also required. Most new Moons therefore do not produce a solar eclipse.

Q4Arrange the following planets in increasing order of their distance from the Sun: A. Jupiter B. Earth C. Venus D. Mars Select the correct answer using the code given below.

A B-C-D-A

B C-D-B-A

C C-B-D-A

D D-C-B-A

Explanation

The planetary order outward from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Among the four listed planets, the increasing-distance order is Venus-Earth-Mars-Jupiter, or C-B-D-A, given in option C.

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