universe & solar system section 1 Practice Questions Answers Test with Solutions & More Shortcuts

Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]

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universe & solar system section 13

Question : 36

Which of the following stars is also known as Pulsar?

a) Neutron Star

b) Massive Star

c) White Dwarf

d) Red Giant

Discuss »

Answer: (a)

Neutron star is also known as Pulsar. A neutron star is a type of stellar remnant that can result from the gravitational collapse of a massive star.

Question : 37

Which of the following statements is/are correct?

  1. All stars and planets in the universe shine by the reflected light of the sun.
  2. Sun is believed to be formed of condensation of gases.
  3. The sun has a surface temperature of about 20 million °C.
  4. Sun is about 30,000 times as big as the earth.
Select the correct answer from the codes given below.

a) 3 and 4

b) 2 and 3

c) 1 and 2

d) 2 only

Discuss »

Answer: (d)

Question : 38 [BPSC (Pre) 1996]

Hottest planet of the solar system is

a) Mars

b) Earth

c) Venus

d) Mercury

Discuss »

Answer: (c)

Question : 39

Consider the following statement:

  1. Mechanical weathering takes place only in sedimentary rocks.
  2. The rain-water reacts with rocks to form new chemical substances.
Which of the statements given above is/are correct?

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Discuss »

Answer: (c)

Question : 40 [SSC CML (PRE) 2001]

Which of the following is known as the Morning Star?

a) Mars

b) Venus

c) Jupiter

d) Saturn

Discuss »

Answer: (b)

One of the nicknames of Venus is “the Morning Star”. It is also known as the Evening Star.

Venus is called so because it appears brightest shortly before sunrise and shortly after sunset.

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