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) When Moon comes between Earth and Sun
(b) None of the above
(c) When Earth comes between Sun and Moon
(d) When Sun comes between the Earth and the Moon
The correct answers to the above question in:
Answer: (a)
Discuss Form
Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
The principle of Blackhole was enunciated by
a) S. Chandrashekhar
b) H. Khurana
c) H.J. Bhabha
d) C.V. Raman
Answer »Answer: (a)
The principle of Blackhole was enunciated by S. Chandrashekhar. A Black Hole is a region of space-time from which gravity prevents anything, including light, from escaping.
The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole, there is a mathematically defined surface called an event horizon that marks the point of no return.
The hole is called “black” because it absorbs all the light that hits the horizon, reflecting nothing, just like a perfect black body in thermodynamics.
Question : 2
If the movement of the Earth’s crust or a major climatic change makes an old stream young, it is called
a) subsequent stream
b) aggradation
c) rejuvenation
d) consequent stream
Answer »Answer: (c)
Rejuvenation is the act of restoring to a more youthful condition.
Question : 3
‘Light Year’ is the unit of
a) Luminosity
b) None of these
c) Distance
d) Time
Answer »Answer: (c)
Question : 4
Which planet is surrounded by ring?
a) Venus
b) Earth
c) Mars
d) Saturn
Answer »Answer: (d)
Saturn is surrounded by ring. Saturn has a ring around it because it is believed to be very big and has lots of moons, meaning it has a strong pull of gravity. Another major reason is that the asteroids fling into its orbit and the rings are not solid.
Question : 5
Consider the following two statements, one labeled as the Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer using the codes given below:
Assertion (A):
The same face of the Moon is always presented to the Earth.
Reason (R):
The Moon rotates about its own axis in days which is about the same time that it takes to orbit the earth. 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: (a)
The same side of the Moon always faces the Earth because the Moon spins once on its axis in exactly the same amount of time that the Moon revolves around the Earth or once every 29 days.
The Moon and Earth have been tidally locked in this configuration for millions of years.
Question : 6
Which one of the following is correct?
a) Astronomical unit
b) Angstrom
c) Parallactic second
d) The mean distance from the Sun to the Earth is called a/an Light year
Answer »Answer: (a)
An Astronomical Unit is the mean distance between the Earth and the Sun.
1 AU = 149,597,870.700 kilometers.
GET Universe, solar system and Astronomy PRACTICE TEST EXERCISES
universe & solar system section 1
universe & solar system section 2
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universe & solar system section 4
universe & solar system section 5
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universe & solar system section 13
Universe, solar system and Astronomy Shortcuts and Techniques with Examples
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