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11. |
Which planet is known as watery planet? |
Answer: Option B
Explanation:
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12. |
Solar system was discovered by: |
A. |
Kepler |
B. |
Galileo |
C. |
Copernicus |
D. |
Plato |
Answer: Option C
Explanation:
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13. |
Huge congregation of stars that are held together by the force of ggravity are known as: |
A. |
Constellations |
B. |
Galaxies |
C. |
Comets |
D. |
Solar system |
Answer: Option B
Explanation:
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14. |
The unit of measuring distances betweenthe stars is known as: |
A. |
Galactic unit |
B. |
Light year |
C. |
Cosmic kilometre |
D. |
Steller mile |
Answer: Option B
Explanation:
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15. |
Which planet look reddish in the night sky? |
Answer: Option B
Explanation:
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16. |
The planets are kept in motion in their respective orbits by: |
A. |
Gravitation nad centrifugal force |
B. |
The rotation and density |
C. |
Their great size |
D. |
Rotation of sun on its axis. |
Answer: Option A
Explanation:
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17. |
The study of heavenly bodies is known as: |
A. |
Astrology |
B. |
Astrophysics |
C. |
Astronomy |
D. |
Geophysics |
Answer: Option B
Explanation:
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18. |
Supernova is: |
A. |
An asteroid |
B. |
A dying star |
C. |
A comet |
D. |
A black hole |
Answer: Option B
Explanation:
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19. |
The milky way extends through a distance of: |
A. |
One light-year |
B. |
105 light-years |
C. |
8 light-years |
D. |
5010 light-hears |
Answer: Option B
Explanation:
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20. |
The altitudes of heavenly bodies appear to be greater than they actually are. This is due to : |
A. |
Atmospheric refraction |
B. |
Motions of the earth |
C. |
These are visible |
D. |
Vertical motions |
Answer: Option A
Explanation:
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