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

Questions : 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

The correct answers to the above question in:

Answer: (c)

Rejuvenation is the act of restoring to a more youthful condition.

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Read more universe solar system astronomy Based Indian Geography Questions and Answers

Question : 1

‘Light Year’ is the unit of

a) Luminosity

b) None of these

c) Distance

d) Time

Answer: (c)

Question : 2

The main condition responsible for greater brightness of the Moon on the full Moon day of 22nd Dec. 99 was

a) Apogee

b) Perigee

c) Perihelion

d) Aphelion

Answer: (b)

Question : 3

Which of the following is not a planet of Solar System?

a) Venus

b) Saturn

c) Florida

d) Mercury

Answer: (c)

Question : 4

The principle of Blackhole was enunciated by

a) S. Chandrashekhar

b) H. Khurana

c) H.J. Bhabha

d) C.V. Raman

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 : 5

When does Solar eclipse occur?

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

Answer: (a)

Question : 6

Which planet is surrounded by ring?

a) Venus

b) Earth

c) Mars

d) Saturn

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.

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