1. On which of the following planets water cycle is available ?
(a) Jupiter (b) Earth
(c) Mars (d) Venus
Ans: (b)
2. The asteroids revolve round the Sun in between :
(a) Earth and Mars
(b) Mars and Jupiter
(c) Jupiter and Saturn
(d) Saturn and Uranus )
Ans: (b)
3. Which of the following is called the twin of the earth ?
(a) Neptune (b) Venus
(c) Mars (d) Saturn
Ans: (b)
4. Which amidst the following planets has its orbit closest to Sun ?
(a) Venus (b) Mars
(c) Jupiter (d) Uranus
Ans: (a)
5. The light from the Sun reaches the Earth in about—
(a) 8 seconds (b) 8 minutes
(c) 10 seconds (d) 10 minutes
Ans: (b)
6. The surface temperature of the sun is estimated as
(a) 6000 °C (b) 12000 °C
(c) 18000 °C (d) 24000 °C
Ans: (a)
7. Which one of the following planets has no moon?
(a) Mars (b) Neptune
(c) Mercury (d) Pluto
Ans: (c)
9. Brightest planet in our solar system is
(a) Venus (b) Mercury
(c) Mars (d) Jupiter
Ans: (a)
10. The Milky Way Galaxy was first observed by
(a) Galileo
(b) Maarten Schmidt
(c) Marconi
(d) Newton
Ans: (a)
11. Which of the following statements is correct ?
(a) Pluto is not a Planet now
(b) Pluto was discoverd by Clyde Tombaugh in 1930
(c) Pluto has been given the number 134340
(d) All of the above
Ans: (d)
12. Which is the hottest planet in the
Solar System ?
(a) Jupiter (b) Saturn
(c) Venus (d) Uranus
Ans: (c)
13. The largest planet in our solar system is
(a) Mars (b) Jupiter
(c) Saturn (d) Mercury
Ans: (b)
14. The four largest planets of the Solar System in decreasing size are
(a) Jupiter, Mercury, Saturn and Uranus
(b) Mercury, Jupiter, Saturn and Neptune
(c) Jupiter, Saturn, Uranus and Neptune
(d) Jupiter, Mercury, Saturn and Neptune
Ans: (c)
15. The number of satellites of the planet is Mercury is
(a) 0 (b) 1
(c) 2 (d) 16
Ans: (a)
16. Which of the following does not belong to the solar system?
(a) Asteroids (b) Comets
(c) Planets (d) Nebulae
Ans: (d)
17. Which is the coldest among the following ?
(a) Mars (b) Earth
(c) Pluto (d) Mercury
Ans: (c)
18. The moon is showing its same face to the earth because
(a) It is not rotating about its own axis
(b) Its rotation and revolution are opposite
(c) Its periods of rotation and revolution are the same
(d) Its rotation is faster than its revolution
Ans: (c)
19. Among the following, the celestial body farthest from the Earth is
(a) Saturn (b) Uranus
(c) Neptune (d) Pluto
Ans: (c)
20. Pulsars are
(a) stars moving towards the Earth
(b) stars moving away from Earth
(c) rapidly spinning stars
(d) high temperature stars
Ans: (c)
21. Biggest planet of solar system is
(a) Earth (b) Mars
(c) Saturn (d) Jupiter
Ans: (d)
22. Which is the second nearest star to the Earth after the Sun?
(a) Vega
(b) Sirius
(c) Proxima Centauri
(d) Alpha Centauri
Ans: (c)
23. The outermost layer of the Sun is called
(a) Chromosphere
(b) Photosphere
(c) Corona
(d) Lithosphere
Ans: (c)
24. Which planet is called evening star?
(a) Mars (b) Mercury
(c) Venus (d) Jupiter
Ans: (c)
25. The planet revolving east to west is
(a) Venus (b) Uranus
(c) Neptune (d) Pluto
Ans: (a)
26. The planet emitting green light is
(a) Jupiter (b) Venus
(c) Uranus (d) Neptune
Ans: (c)
27. The number of zodiacs is
(a) 10 (b) 12
(c) 13 (d) 11
Ans: (b)
28. Which of the following is known as the Morning Star?
(a) Saturn (b) Jupiter
(c) Mars (d) Venus
Ans: (d)
29. Which planet orbits closest to the earth?
(a) Mars (b) Jupiter
(c) Venus (d) Mercury
Ans: (c)
30. Solar energy is received by the earththrough
(a) conduction (b) radiation
(c) convection (d) refraction
Ans: (b)
31. The planets on either side of the Earth are
(a) Mars and Jupiter
(b) Mercury and Venus
(c) Venus and Saturn
(d) Mars and Venus
Ans: (d)
32. Which planet looks reddish in the night sky ?
(a) Jupiter (b) Saturn
(c) Mars (d) Mercury
Ans: (c)
33. Isohels are the isopleths of
(a) sunshine
(b) flowering time
(c) rain (d) clouds
Ans: (a)
34. Which one of the following is the largest planet ?
(a) Jupiter (b) Venus
(c) Saturn (d) Uranus
Ans: (a)
35. The mass of Jupiter is approximately
(a) one tenth of the solar mass
(b) one thousandth of the solar mass
(c) one hundredth of the solar mass
(d) half the solar mass
Ans: (b)
36. The planet nearest to the Sun is :
(a) Earth (b) Mercury
(c) Mars (d) Venus
Ans: (b)
37. The planet that takes 88 days to make one revolution of the sun is :
(a) Mercury (b) Saturn
(c) Jupiter (d) Mars
Ans: (a)
38. „Super nova‟ is
(a) a comet
(b) an asteroid
(c) an exploding Star
(d) a black hole
Ans: (c)
39. Which planet in our solar system is nearly as big as the earth ?
(a) Mercury (b) Mars
(c) Venus (d) Pluto
Ans: (c)
40. Which of the following is called “Blue Planet” ?
(a) Saturn (b) Earth
(c) Jupiter (d) Mars
Ans: (b)
41. Which planet in our solar system is
nearly as big as the earth ?
(a) Mercury (b) Mars
(c) Venus (d) Pluto
Ans: (c)
42. Which planets do not have satellites revolving around them ?
(a) Mars and Venus
(b) Mercury and Venus
(c) Mars and Mercury
(d) Neptune and Pluto
Ans: (b)
43. The planet which has the highest surface temperature is
(a) Jupiter (b) Earth
(c) Pluto (d) Venus
Ans: (d)
44. Light from the Sun reaches us in nearly
(a) 8 min (b) 2 min
(c) 6 min (d) 4 min
Ans: (a)
45. A spinning neutron star is known as
(a) White dwarf (b) Black hole
(c) Pulsar (d)Quasar
Ans: (c)
46. When the moon completely covers the sun, it is known as
(a) the Antumbra
(b) the Umbra
(c) the Penumbra
(d) None of these
Ans: (b)
47. The darkest portion of the shadow cast during an eclipse is
(a) Corona (b) Umbra
(c) Penumbra (d) Black hole
Ans: (b)
48. The total number of planets revolving around the sun is
(a) Five (b) Eight
(c) Seven (d) Six
Ans: (b)
49. In a solar or lunar eclipse, the region of earth‟s shadow is divided into
(a) Five parts (b) Four parts
(c) Two parts (d) Three parts
Ans: (d)
50. Day and Night are equal at the:
(a) Prime Meridian
(b) Antarctic
(c) Poles
(d) Equator
Ans: (d)
51. Name the first Asian country to Orbit Mars.
(a) Japan (b) Pakistan
(c) China (d) India
Ans: (d)
52. Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
(a) Kepler (b) Galileo
(c) Newton (d) Copernicus
Ans: (a)
53. Which of the following is an alternative theory to the Big Bang theory developed in 1948, stating that the
universe does not change even though it is expanding over time ?
(a) Oscillating Universe
(b) Steady State Universe
(c) Mirror Universe
(d) Eternal Inflation
Ans: (b)
54. The constellation „Sapta Rishi‟ is known to Westerners as the
(a) Seven Monks
(b) Alpha Centauri
(c) Big Dipper
(d) Small Bear
Ans: (c)
55. Which of these is a dwarf planet?
(a) Neptune (b) Titan
(c) Eris (d) Hydra
Ans: (c)
56. Stars twinkle but planets do not twinkle because
(a) they emit light of a constant intensity
(b) their distance from the earth does not change with time
(c) they are very far away from the earth resulting in decrease in intensity of light
(d) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity arenot noticeable
Ans: (d)
57. The outermost layer of sun is called
(a) Lithosphere
(b) Chromosphere
(c) Photosphere
(d) Corona
Ans: (d)
58. On which date is India likely to experience the shortest day?
(a) December 22
(b) March 21
(c) June 22
(d) September 23
Ans: (a)
59. When does solar eclipse take place ?
(a) When the sun is between the moon and earth
(b) When the earth is between the moon and sun
(c) When the moon is between the sun and earth
(d) When the moon does not lie on the line joining the sun and earth
Ans: (c)
60. When does the sun shine vertically on the Equator ?
(a) Throughout the year
(b) For six months
(c) Twice a year
(d) Once a year
Ans: (c)
61. If a star is bigger than Sun, but not more than twice as big, it will turn into a_______.
(a) Pulsar (b) Maxima
(c) Avenger (d) Discover
Ans: (a)
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