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Our Universe / Solar System Top 50 Questions of Physical Geography for SSC Exam
1. The circle of Illumination divides Earth into two hemisphere known as
1. East and West
2. North and South
3. Day and Night
4. Summer and Winter
Ans : 2
2. Which planet was named after the Roman God Zeus ?
1. Mars
2. Earth
3. Venus
4. Jupiter
Ans : 4
3. Which of the following is the farthest planet to the sun ?
1. Mars
2. Jupiter
3. Neptune
4. Earth
Ans : 3
4. Which is the closest star to the earth ?
1. Sirius
2. Sun
3. Rigel
4. Deneb
Ans : 2
5. Who discovered the solar system ?
1. Copernicus
2. Kepler
3. Aryabhatta
4. Newton
Ans : 1
6. How many kilometers and represented by 1° of latitude ?
1. 321 km
2. 211 km
3. 111 km
4. 91 km
Ans : 3
7. The average distance from the sun to earth is
1. 150 million km
2. 57.8 million km
3. 227.9 million km
4. 778.2 million km
Ans : 1
8. Which one of the following is present in the largest amount in terms of percent by mass in the earth's crust ?
1. Silicon
2. Oxygen
3. Carbon
4. Calcium
Ans : 2
9. The Scientists who first discovered that the earth revolves round the sun was
1. Newton
2. Dalton
3. Copernicus
4. Einstein
Ans : 3
10. Which among the following planets is smaller in size than the earth ?
1. Neptune
2. Venus
3. Saturn
4. Uranus
Ans : 1
11. Eclipses occur due to which optical phenomena ?
1. Reflection
2. Refraction
3. Rectilinear propagation
4. Diffraction
Ans : 3
12. The earth rotates around an axis pointing towards
1. The moon
2. The pole star
3. The sun
4. Venus
Ans : 2
13. Which one among the following is called terrestrial planet ?
1. Mercury
2. Jupiter
3. Saturn
4. Uranus
Ans : 1
14. The twinkling of a star is due to
1. The variation in the intensity of light emitted by it with time
2. The variation in the composition of the star with time
3. The transit of other celestial objects across the line of sight
4. The atmospheric refraction of star light
Ans : 4
15. The earth is at its maximum distance from the sun on :
1. Jan 30th
2. Dec 22nd
3. Sep 22nd
4. July 4th
Ans : 4
16. One degree of the circumference of the earth measures approx..
1. 100 km
2. 111 km
3. 151 km
4. 175 km
Ans : 2
17. The brightest planet is :
1. Jupiter
2. Mars
3. Venus
4. Mercury
Ans : 3
18. What is meant by the term "midnight sun" ?
1. Twilight
2. Rising sun
3. Very bright moon
4. Sun shining in the polar circle for long time
Ans : 4
19. The earth rotates around its axis from
1. North to south
2. East to west
3. South to north
4. West to east
Ans : 4
20. The inclination of the earth's axis to the orbital plane is
1. 21.5°
2. 23.5°
3. 66.5°
4. 90°
Ans : 3
21. The names of Saturn's largest moon is :
1. Mimas
2. Enceladus
3. Titan
4. Tethys
Ans : 3
22. The mean radius of the earth is
1. 3200 km
2. 6400 km
3. 9600 km
4. 12800 km
Ans : 2
23. The total surface area of earth is
1. 510 million sq. km
2. 610 million sq. Km
3. 710 million sq. Km
4. 810 million sq. Km
Ans : 1
24. What is the approximate equatorial circumference of the earth ?
1. 30,000 km
2. 35,000 km
3. 40,000 km
4. 45,000 km
Ans : 3
25. The approximate diameter of the earth is
1. 4200 km
2. 6400 km
3. 12800 km
4. 15600 km
Ans : 3
26. An ape like creature identified as man appeared in the
1. Pleistocene epoch
2. Pliocene epoch
3. Miocene epoch
4. Oligocene epoch
Ans : 1
27. The first dinosaurs appeared in the
1. Permian period
2. Triassic period
3. Jurassic period
4. Cretaceous period
Ans : 2
28. Who discovered the first four satellites of jupiter ?
1. Galileo
2. Copernicus
3. Newton
4. Kepler
Ans : 1
29. Which planet in our solar system is nearly as big as the earth ?
1. Mercury
2. Mars
3. Venus
4. Pluto
Ans : 3
30. The planet that takes 88 days to make one revolution of the sun is
1. Mercury
2. Saturn
3. Jupiter
4. Mars
Ans : 1
31. The distance of the earth from the sun is about
1. 1500 million km
2. 300 million km
3. 227 million km
4. 149 million km
Ans : 4
32. Which of the following is called "Blue planet"?
1. Saturn
2. Earth
3. Jupiter
4. Mars
Ans : 2
33. The earth makes one complete revolution in
1. 365 days
2. 360 days
3. 365.5 days
4. 1 day
Ans : 3
34. Which one of the following is not connected with proofs of the earth's shape ?
1. Rotation and revolution
2. Circumnavigation
3. The earth's shadow
4. The bedford level canal experiment
Ans : 4
35. The outermost layer of the sun is called
1. Chromosphere
2. Photosphere
3. Corona
4. Lithosphere
Ans : 3
36. Titan is the largest natural satellite of planet
1. Mercury
2. Venus
3. Saturn
4. Neptune
Ans : 3
37. The line joining places of equal values of horizontal component of earth's magnetic field are called :
1. Isogonic lines
2. Isodynamic lines
3. Aclinic lines
4. Isoclinic lines
Ans : 1
38. A difference of 1 degree in longitude at the Equator is equivalently to nearly..
1. 101 km
2. 111 km
3. 121 km
4. 125 km
Ans : 2
39. Light year measures which of the following ?
1. Intensity of light
2. Mass
3. Distance
4. Time
Ans : 3
40. Meteorites are the heavenly bodies
1. Between the Mars and jupiter
2. Between the Saturn and Neptune
3. Between the Mars and Venus
4. That burn brightly on entering the Earth atmosphere
Ans : 4
41. The largest planet in our solar system is
1. Mars
2. Jupiter
3. Butterfly
4. Saturn
Ans : 2
42. Which of the following do not belong to solar system ?
1. Asteroids
2. Comets
3. Planets
4. Nebulae
Ans : 1
43. One astronomical unit is the average distance between.
1. The earth and the sun
2. The pluto and the sun
3. The jupiter and the sun
4. The earth and the Moon
Ans : 1
44. What is the time taken by the Earth to complete one revolution on its imaginary axis ?
1. 24 hr 37 min 23 sec
2. 24 hr
3. 23 hr 56 min 4 sec
4. 23 hr 52 min
Ans : 3
45. The tropic of cancer does not pass through :
1. India
2. Egypt
3. Mexico
4. Iran
Ans : 4
46. How does the sun get its Energy ?
1. From gravitational pressure
2. From nuclear fission
3. From nuclear fusion
4. None of the above
Ans : 3
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