universe & solar system section 9 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11 [MPPCS (Pre) 2014]

The coldest planet in the Solar System is

a) Mars

b) Saturn

c) Jupiter

d) Neptune

Answer: (d)

Question : 12

Consider the following statements:

  1. Our solar system is located in the orion arm of the Milky way galaxy, about two-third of the way out from the centre.
  2. The solar system formed from an interstellar cloud of dust and gas or nebulla about 4.6 billion years ago.
Which of the above statements is/are correct?

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Answer: (a)

Our solar system is located in the Orion arm of the milky way galaxy, about two-thirds of the way out from the center.

The sun is about 26,000 light-years from the center of the Milky Way Galaxy, which is about 80,000 to 120,000 light-years across (and less than 7,000 light-years thick). We are located on one of its spiral arms, out towards the edge.

It takes the sun (and our solar system) roughly 200-250 million years to orbit once around the Milky Way. In this orbit, we (and the rest of the Solar System) are traveling at a velocity of about 155 miles/sec (250 km/sec).

Question : 13

Match List-I with List-II and select the correct answer using the codes given below the lists:

List I List II
(Planets) (Satellites)
A. Earth 1. Tritan
B. Jupiter 2. Titan
C. Saturn 3. Ganymede
D. Neptune 4. Moon
Codes: A B C D

a) 4 3 1 2

b) 3 4 2 1

c) 2 1 3 4

d) 1 2 3 4

Answer: (a)

  1. Moon is the satellite of Earth.
  2. Ganymede is the satellite of Jupiter.
  3. Tritan is the satellite of Neptune.
  4. Titan is the satellite of Saturn.

Question : 14

The Earth’s surface receives maximum energy at 12 noon but the maximum temperature never occurs at 12 noon. State which of the following reasons are correct?

  1. Transformation of solar energy into heat requires some time.
  2. The loss of energy through long-wave radiations from the Earth’s surface exceeds the energy received from the Sun at 4:00 p.m.
  3. Energy received by the Earth from solar radiations continues to exceed the energy lost by outgoing long-wave radiations from the Earth’s surface up to 4:00 p.m.
Select the correct answer using the code given below : Code :

a) 1 and 3 only

b) 1, 2 and 3

c) 2 and 3 only

d) 1 and 2 only

Answer: (a)

Transformation of solar energy into heat requires some time, energy received by the earth from solar radiations continues to exceed the energy lost by outgoing long-wave radiations from the earth’s surface from 4.00p.m.

Question : 15 [SSC CGL 2016]

The outermost layer of the sun is called

a) Photosphere

b) Corona

c) Chromosphere

d) Lithosphere

Answer: (b)

The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere).

The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse.

The corona does not have an upper limit.

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964 Universe, solar system and Astronomy based indian geography mcq section 9 question answer with explanation pdf

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