universe & solar system section 3 MCQ Questions & Answers Detailed Explanation
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The following question based on Universe, solar system and Astronomy topic of indian geography mcq
(a) 4.3 hours
(b) 4.3 years
(c) 4.3 minutes
(d) 12 minutes
The correct answers to the above question in:
Answer: (b)
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Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
Which planets do not have satellites revolving around them ?
a) Mars and Mercury
b) Neptune and Pluto
c) Mercury and Venus
d) Mars and Venus
Answer »Answer: (c)
Of the nine planets, only Venus and Mercury have no known natural satellites. A total of 139 moons, or natural satellites, can be found in the vast solar system.
Question : 2
DIRECTIONS :
The following question consist of two statements, one labelled as ‘Assertion (A)’ and the other as ‘Reason (R)’. You are to examine these two statements carefully and select the correct answers to these questions using the codes given below.
Assertion (A)
The equatorial regions bulge outwards by about 21 km compared to poles.
Reason (R)
Earth’s slow rotation reduces the effect of gravity around the equator.
Codes
a) A is true, but R is false
b) A is false, but R is true
c) Both A and R are true, but R is not the correct explanation of A
d) Both A and R are true and R is the correct explanation of A
Answer »Answer: (d)
Question : 3
Which of the following phenomenon is/are the effect of the rotation of the earth?
- Apparent movement of the Sun, the Moon and the Stars.
- Flatness of the poles and bulge at the equator.
- Occurrence of sunrise, noon and sunset.
- Magnetic field of the earth.
a) 2 and 3 only
b) 1, 2, 3 and 4
c) 1 and 3 only
d) 1 and 2 only
Answer »Answer: (b)
All the given phenomena are the effect of the rotation of the earth. The Earth rotates from the west towards the east.
As viewed from the North Star or polestar Polaris, the Earth turns counter-clockwise.
Question : 4
What is the most accurate description of the shape of the earth ?
a) A geoid
b) An oblate sphere
c) A sphere
d) A circle
Answer »Answer: (b)
Question : 5
Which of the following correctly explains Kepler’s first law of Planetary Motion?
a) The square of the time period of a planet is proportional to the cube of the semimajor axis of the ellipse
b) None of the above
c) The radius vector from the sun to the planet sweeps equal area in equal time
d) All the planets move in elliptical orbits with the sun at a focus
Answer »Answer: (d)
Kepler’s First law of Planetary Motion States that all the planets move in elliptical orbits with the sun at a focus.
Question : 6
Which of the following statements regarding the duration of day and night is correct?
a) Difference is least at the Tropics and progressively increases towards the Equator and Poles
b) Difference is maximum at the Tropics and progressively decreases towards the Equator and Poles
c) Difference is maximum at the Equator and progressively decreases away from it
d) Difference is least near the Equator and progressively increases away from it
Answer »Answer: (d)
On the equator, the day and night stay approximately the same length all year round.
GET Universe, solar system and Astronomy PRACTICE TEST EXERCISES
universe & solar system section 1
universe & solar system section 2
universe & solar system section 3
universe & solar system section 4
universe & solar system section 5
universe & solar system section 6
universe & solar system section 7
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universe & solar system section 12
universe & solar system section 13
Universe, solar system and Astronomy Shortcuts and Techniques with Examples
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