universe & solar system section 10 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT indian geography mcq - 13 EXERCISES
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The following question based on Universe, solar system and Astronomy topic of indian geography mcq
(a) Nebula
(b) None of these
(c) Fulalunar
(d) Cislunar
The correct answers to the above question in:
Answer: (d)
Space between Earth and Moon is known as Cislunar. Pertaining to the space between the earth and the orbit of the moon.
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Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
There are two statements, one labelled as the Assertion (A) and other as Reason (R). Examine these two statements carefully and select the correct answer by using the codes given below:
Assertion (A):
According to the Nova hypothesis, Solar planets were formed because of the explosion of Super Nova.
Reason (R):
A star becomes Super Nova in that stage when it has lacks hydrogen element.
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: (c)
According to the Nova hypothesis, Solar planets were formed because of the explosion of Super Nova. A star becomes Super Nova in that stage when it has lacks hydrogen elements. A supernova happens where there is a change in the core, or center, of a star.
A change can occur in two different ways, with both resulting in a supernova. The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova. The second type of supernova occurs at the end of a single star’s lifetime. As the star runs out of nuclear fuel, some of its mass flows into its core.
Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
Question : 2
Solar energy is received by the earth through
a) convection
b) refraction
c) radiation
d) conduction
Answer »Answer: (c)
In physics, radiation is a process in which energetic particles or energetic waves travel through a vacuum, or through matter-containing media that are not required for their propagation. The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere.
Question : 3
The mean radius of the Earth is
a) 8400 km
b) 12800 km
c) 6400 km
d) 3200 km
Answer »Answer: (c)
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 5
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universe & solar system section 10
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universe & solar system section 12
universe & solar system section 13
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