1000+ Astronomy Multiple Choice Question Answer [Solved]

1. If the Sun dies It will be transformed Into a
A. White Dwarf
B. Black Dwarf
C. Quasar
D. All of the above
Answer : B

2. The Sun contains over ___of the total mass of the Solar System.
A. 0.825
B. 0.98
C. 0.998
D. 0.02
Answer : C

3. Nearest star from the earth after Sun is
A. Proxima Centaury
B. Alfa Centaury
C. Dog Star
D. Constellation
Answer : A

4. Lunar eclipse means
A. Direction or path of the Moon
B. The Moon comes between the Sun and the Earth
C. The Earth comes in between the sun and the Moon and the centres of all the three come on the same straight line
D. The average angle made by a line drawn from the Moon to the Earth
Answer : C

5. Brightest planet of our Solar System is _____.
A. Venus
B. Mercury
C. Uranus
D. Saturn
Answer : A

6. Deimos and Phobos are the satellites of
A. Earth
B. Mars
C. Uranus
D. Neptune
Answer : B

7. Which planet does take the longest time in completing one revolution around the Sun?
A. Uranus
B. Saturn
C. Pluto
D. Neptune
Answer : C

8. How much time does the earth take in completing one rotation on its axis in relation to sun?
A. 23 hours 56 minutes
B. 24 hours
C. 23 hours 46 minutes
D. 24 hours 4 minutes
Answer : B

9. The permanent tilt of the Earth's axis and the revolution of the Earth in its orbit together cause
A. Day and night
B. Varying lengths of day and night at different times of the year
C. Differences in time between places on different meridians
D. The deflection of winds
Answer : B

10. A Light Year measures
A. A unit of velocity
B. A unit of distance
C. A unit of pressure
D. A unit of time
Answer : B

11. Which planet rotates on its axis from north to south?
A. Uranus
B. Venus
C. Mars
D. Pluto
Answer : A

12. Charon' is the satellite of _____.
A. Earth
B. Saturn
C. Pluto
D. Neptune
Answer : C

13. How much Is the average distance of the Sun from the Earth?
A. 150 million km
B. 145 million km
C. 155 million km
D. 140 million km
Answer : A

14. What is the name of 'brightest Planet'?
A. Venus
B. Mercury
C. Mars
D. Saturn
Answer : A

15. Which of the following are the Inner Planets?
1. Mercury
2. Venus
3. Earth
4. Mars
A. Only 1
B. 1 and 2
C. 1, 2 and 3
D. 1, 2, 3 and 4
Answer : D

16. Relatively cool spots of the Sun are called __ while relatively hot spots of the Sun are called __.
A. Fusionspot, Facu1ae
B. Sunspot, Faculae
C. Faculae, Sunspot
D. Sunspot, Hotspot
Answer : B

17. The axis of Mars la inclined at an angle of
A. 25°
B. 30°
C. 35°
D. 15°
Answer : A

18. Which star la called the brightest star (Dog star)?
A. Sirius
B. Proxima Centaury
C. Orion
D. Pole Star
Answer : A

19. What is the direction of rotation of the earth on its axis?
A. East to West
B. South to North
C. North to South
D. West to East
Answer : D

20. The name of our galaxy is _______
A. Alfa Centauri
B. Proxima Centauri
C. Milky Way
D. Neptune
Answer : C

21. Planet with maximum satellites is _____.
A. Earth
B. Saturn
C. Jupiter
D. Pluto
Answer : B

22. What part of the moon's surface is never visible from the earth?
A. 1.41
B. 1.47
C. 0.59
D. 0.5
Answer : A

23. Which planet is called 'Double Planet'?
A. Venus
B. Uranus
C. Pluto
D. Earth
Answer : C

24. What is siderial day?
A. Time taken by the earth to complete one rotation with respect to a fixed star at infinity
B. Time taken by the earth to complete one revolution with respect to the Moon
C. Time taken by the earth to complete one rotation with respect to the Moon
D. Time taken by the earth to complete one rotation with respect to the Sun
Answer : A

25. Which of the following is the largest ocean?
A. Indian
B. Pacific
C. Atlantic
D. Arctic
Answer : B

26. Planet with nearly equal rotation and revolution time to the earth is _____.
A. Venus
B. Mercury
C. Uranus
D. Mars
Answer : A

27. The Sun experiences magnetic storms and this Interferes with the magnetic field oC the Earth and produces light which are called
A. Quasars
B. Polar Auroras
C. Meteorites
D. Pulsar
Answer : B

28. On the summer solstice in the Northern Hemisphere which of the hollowing latitudes will have the longest night?
A. 45°S
B. 60°S
C. 60°N
D. 45°N
Answer : B

29. Equatorial circumference of the Earth is
A. 40067 km
B. 50067 km
C. 4067 km
D. 5067 km
Answer : A

30. Which of the following is 'the cruel planet' in Indian astrology?
A. Jupiter
B. Saturn
C. Uranus
D. Neptune
Answer : B

31. When the earth is at its minimum distance from the Sun, it is said to be
A. Perigee
B. Apogee
C. Perihelion
D. Aphelion
Answer : C

32. Smallest planet of our Solar System is _____.
A. Pluto
B. Earth
C. Venus
D. Mercury
Answer : A

33. What happens during the equinoxes?
A. The countries along the Equator are in darkness
B. The countries along the Equator are at their hottest
C. The countries along the Equator are at their wettest
D. The Sun shines vertically over the Equator
Answer : D

34. What is the temperature of the sun estimated at approximately?
A. 5000°C
B. 6000°C
C. 7000°C
D. 212°C
Answer : B

35. A meteor is
A. a rapidly moving star
B. a piece of matter which has entered the earth's atmosphere from outer space
C. part of a constellation
D. a comet without a tail
Answer : B

36. On which date is the Earth in 'perihelion'?
A. January-3
B. June-21
C. July-4
D. December-22
Answer : A

37. Orion and Great Bear stand for ______.
A. star
B. planet
C. Solar System
D. Constellation
Answer : D

38. When dees the Summer Solstice occur?
A. July 23
B. June 21
C. May 20
D. April 31
Answer : B

39. The Jupiter's atmosphere comprises mainly of
A. Hydrogen and oxygen
B. Carbondioxide and oxygen
C. Hydrogen and hydrogen compounds
D. Nitrogen and helium
Answer : C

40. How many of the following statements are true?
1. Mean Solar Day is greater than Sidereal Day approximately by 4 minutes.
2. Earth's rotational velocity is decreasing.
3. Planets are arranged according to their increasing distance from the sun as follo
A. 3 and 4
B. 1, 3 and 4
C. 1 and 2
D. 1, 2, 3 and 4
Answer : D

41. How many degrees north and south are the Tropics?
A. 47 degrees
B. 23.5 degrees
C. 12 degrees
D. 30 degrees
Answer : A

42. Which one of the following conditions is moat relevant for the presence of life on Mars?
A. Atmospheric composition
B. Thermal conditions
C. Occurrence of ice caps and frozen water
D. Occurrence of ozone
Answer : C

43. On which date is the Earth in 'aphelion'?
A. July-4
B. December-22
C. September-23
D. June-21
Answer : A

44. What proportion of the mass of the earth does the mass of the Moon equal?
A. 1/81
B. 1/18
C. 1/27
D. 1/72
Answer : A

45. What la the difference between a gulf and a bay?
A. A gulf is big and a bay is small
B. A gulf is at a rivermouth and a bay is not
C. A bay is surrounded by cliffs and a gulf by lowland
D. Both are part of the sea that extend considerably into the land, but a bay usually has a wider entrance than a gulf
Answer : D

46. How much time does earth take in making one rotation on its axis with respect to a fixed star at infinite distance?
A. 23 hours 56 minutes
B. 24 hours
C. 23 hours 46 minutes
D. 24 hours 4 minutes
Answer : A

47. Which of the following statements prove(s) that the earth Is spherical?
The Sun rises and sets at different lines in different places.
The shadow cast by the earth on the moon during the lunar eclipse is always circular.
Pictures taken from high alti
A. Only 1
B. 2 and 3
C. I, 2 and 3
D. Only 2
Answer : C

48. Polar Auroras are
A. Quasars
B. b) Pulsar
C. Aurora Borealis
D. White Dwarfstar
Answer : C

49. Earth revolves round the Sun In an orbit once In every __.
A. 24 hours
B. 20 hours
C. 365 % days
D. 366 days
Answer : C

50. Sunspots are
A. undulations on the solar surface
B. huge magnetic storms on the solar surface
C. places with adequate sunshine
D. places of tourist importance
Answer : B