Q. Which one among the following planet is smaller in size than the Earth?

a) Neptune

b) Venus

c) Saturn

d) Uranus

Answer: b) Venus

Q. The planet which is called twin sister of Earth is

a) Mercury

b) Venus

c) Mars

d) Pluto

Answer: b) Venus

Q. The two planets having no satellite are

a) Earth and Jupiter

b) Mercury and Venus

c) Mercury and Saturn

d) Venus and Mars

Answer: b) Mercury and Venus

Q. Which of the planets is known as ‘Morning Star’ as well as ‘Evening Star’

a) Jupiter

b) Mars

c) Mercury

d) Venus

Answer: b) Mars

Q. Which of the given two planets are between Mars and Uranus in order of distance from the Sun?

a) Earth and Jupiter

b) Jupiter and Saturn

c) Saturn and Earth

d) Saturn and Neptune

Answer: b) Jupiter and Saturn

Q. Which is the largest planet in the solar system?

a) Jupiter

b) Neptune

c) Uranus

d) Saturn

Answer: a) Jupiter

Q. Which one of the following is the heaviest planet of our solar system?

a) Jupiter

b) Venus

c) Pluto

d) Saturn

Answer: a) Jupiter

Q. The ring of Jupiter is composed of

a) Silicates

b) Oxygen

c) Xenon

d) Ozone

Answer: a) Silicates

Q. The ‘Big Bang Theory’ is related to  

a) Continental drifts

b) Origin of the Universe

c) Origin of the himalayas

d) eruption of volcanoes

Answer: b) Origin of the Universe

Q. According to ‘Big Bang Theory’, our universe sprang into existence as ‘singularity’ around 13.7 billion years ago. Who proposed Big Bang Theory?

a) Georges Lemaitre

b) Galileo

c) Euclid

d) Aristotal

Answer: a) Georges Lemaitre

Q. Which one of the following hypothesis/theory explains the origin of the universe?

a) Nebular Hypothesis

b) Binary Theory

c) Big Bang Theory

d) Planetesimal Hypothesis

Answer: a) Nebular Hypothesis

Q. The study of Universe is known as

a) Cosmology

b) Cosmography

c) Astronomy

d) Geography

Answer: a) Cosmology

Q. The name of our galaxy is

a) Whirlpool Galaxy

b) Black Eye Galaxy

c) Andromeda Galaxy

d) Milky Way Galaxy

Answer: d) Milky Way Galaxy

Q. The Milky Way is classified as

a) Spiral Galaxy

b) Elliptical Galaxy

c) Irregular Galaxy

d) Round Galaxy

Answer: a) Spiral Galaxy

Q. In irregular galaxies, quantity of gases and dust is

a) zero

b) more than stars

c) less than stars

d) limited

Answer: b) more than stars

Q. Milky Way galaxy has most of its stars

a) on its boundary lines

b) in the canter

c) at the corners

d) behind hits boundary lines

Answer: b) in the canter

Q. The average distance between Sun and the last planet in the Solar system is

a) 2873 million km

b) 4495 million km

c) 779 million km

d) None of these

Answer: b) 4495 million km

Q. The mean distance from the Sun to the Earth is known as 

a) light year

b) parallactic second

c) astronomical unit

d) angstrom

Answer: c) astronomical unit

Q. One astronomical unit is the average distance

a) between Earth and Sun

b) between Earth and Moon

c) between Jupiter and Sun

d) between Pluto and Sun

Answer: a) between Earth and Sun

Q. Light from the Sun reaches us in nearly

a) 2 minutes

b) 8 minutes

c) 4 minutes

d) 16 minutes

Answer: b) 8 minutes

Q. Time taken by the Sun to revolve around the centre of our galaxy is

a) 2.5 crores years

b) 10 crores years

c) 25 crores years

d) 50 crores years

Answer: c) 25 crores years

Q. Solar energy is due to

a) ionisation

b) nuclear fusion

c) nuclear fission

d) oxidation

Answer: b) nuclear fusion

Q. Size of the Sun is how many times bigger than that of the Earth?

a) 124 times

b) 100 times

c) 109 times

d) 115 times

Answer: c) 109 times

Q. Sun’s halo is produced by the refraction of light in

a) water vapour in stratus clouds.

b) ice crystals in cirrocumulus clouds.

c) ice crystals in cirrus clouds.

d) dust particles in stratus clouds.

Answer: c) ice crystals in cirrus clouds.

Q. Which one among the following stars is nearest to the Earth?

a) Sirius

b) Arcturus

c) Spica

d)  Taurus

Answer: d) Taurus

Q. The group of stars that indicates the direction of Poles is

a) Saptarishi

b) Mrig

c) Scorpio

d) Taurus

Answer: a) Saptarishi

Q. The colour of the star indicates its

a) distance from Sun

b) lighting or glow

c) distance from the Earth

d) temperature

Answer: d) temperature

Q. A group of stars arranged in a particular shape is called

a) Milky Way

b) Constellation

c) Andromeda

d) Solar System

Answer: b) Constellation

Q. How many constellations are in our space?

a) 87

b) 88

c) 89

d) 90

Answer: b) 88

Q. The limit beyond which stars suffer internal collapse is called

a) Chandrashekhar limit

b) Eddington limit

c) Hoyle limit

d) Fowler limit

Answer: a) Chandrashekhar limit

Q. The unit of measuring distance between the stars is known as

a) Stellar mile

b) Cosmic km

c) Galactic unit

d) Light year

Answer: d) Light year

Q. The ‘Black Hole Theory’ was propounded by

a) CV Raman

b) HJ Bhabha

c) S Chandrashekhar

d) Hargovind Khurana

Answer: c) S Chandrashekhar

Q. A ‘Supernova’ is  

a) an asteroid

b) a black hole

c) a comet

d) a dying star

Answer: d) a dying star

Q. Which of these is a celestial phenomenon occurring due to stars?

a) Ozone Hole

b) Black Hole

c) Rainbow

d) Comet

Answer: b) Black Hole

Q. Which one of the following is an object with such a strong gravitational field that even light cannot escape from its surface?

a) Neutron Star

b) White Dwarf

c) Black Hole

d) Supernova Star

Answer: c) Black Hole

Q. A ‘black hole’ is a body in space which does not allow any type of radiation to come out. This property is due to its

a) very small size

b) very large size

c) high density

d) very low density

Answer: c) high density

Q. A very small, hot object, which is, the last stage in the life cycle of a star is known as

a) red giant

b) white dwarf

c) supernova

d) black hole

Answer: b) white dwarf

Q. Which one of the following is not found in space?

a) Pulsar

b) Brittle Star

c) Black Hole

d) Quasar

Answer: b) Brittle Star

Q. Which of the following does not belong to solar syatem?

a) Asteroids

b) Comets

c) Planets

d) Nebulae

Answer: d) Nebulae

Q. The number of the planets in the solar system is

a) 7

b) 8

c) 12

d) 21

Answer: b) 8

Q. The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

a) Galileo

b) Martin Luther

c) Johannes Kepler

d) Copernicus

Answer: c) Johannes Kepler

Q. Which one of the following represents the inner planets?

a) planets between the Sun and the Earth.

b) planets between the Sun and the belt of asteroids.

c) planets near the Earth.

d) planets around the Sun.

Answer: b) planets between the Sun and the belt of asteroids.

Q. Which of the following planets of our solar system has least mass?

a) Neptune

b) Jupiter

c) Mars

d) Mercury

Answer: d) Mercury

Q. Which one among the following is called terrestrial planet?

a) Mercury

b) Jupiter

c) Saturn

d) Uranus

Answer: a) Mercury

Q. The hottest planet of the solar system is

a) Mercury

b) Venus

c) Mars

d) Earth

Answer: b) Venus

Q. In the sequence of planets in the solar system, which planet comes in between Mercury and Earth?

a) Mars

b) Uranus

c) Venus

d) Jupiter

Answer: c) Venus