universe & solar system section 9 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) 26 June, 2008
(b) 26 May, 2008
(c) 27 May, 2008
(d) 27 June, 2008
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
Two planets which have no satellites
a) Mercury and Mars
b) Venus and Mars
c) Mercury and Venus
d) Earth and Uranus
Answer »Answer: (c)
Question : 2
The inexhaustible source of energy of the stars is due to
a) conversion of Helium to Hydrogen.
b) excess of oxygen that helps burning and release of energy.
c) conversion of Hydrogen to Helium.
d) decay of radioactive elements.
Answer »Answer: (c)
The inexhaustible source of energy of the stars is due to the conversion of Hydrogen to Helium. In the interior of a star, the particles move rapidly in every direction because of the high temperatures present.
Every so often a proton moves close enough to a nucleus to be captured, and a nuclear reaction takes place. Only protons of extremely high energy (many times the average energy in a star such as the Sun) are capable of producing nuclear events of this kind. The minimum temperature required for fusion is roughly 10 million K.
Since the energies of protons are proportional to temperature, the rate of energy production rises steeply as temperature increases.
Question : 3
The latitude is the angular distance of a point on the earth’s surface with respect to the
a) Pole star
b) Tropic of Cancer
c) Prime meridian
d) Equator
Answer »Answer: (d)
Latitude is distance North or south of the equator. It may also be defined as an angle which ranges from 0° at the equator to 90° at the poles.
Question : 4
Which planet was named after the Roman God Zeus?
a) Venus
b) Jupiter
c) Mars
d) Earth
Answer »Answer: (b)
Jupiter was named after the Roman God Zeus. Zeus is the “Father of Gods and men” who rules the Olympians of Mount Olympus as a father rules the family according to the ancient Greek religion.
He is the God of sky and thunder in Greek mythology. Zeus is etymologically cognate with and, under the Hellenic influence, became particularly closely identified with Roman Jupiter.
Question : 5
The outermost layer of the sun is called
a) Photosphere
b) Corona
c) Chromosphere
d) Lithosphere
Answer »Answer: (b)
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere).
The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse.
The corona does not have an upper limit.
Question : 6
The Earth’s surface receives maximum energy at 12 noon but the maximum temperature never occurs at 12 noon. State which of the following reasons are correct?
- Transformation of solar energy into heat requires some time.
- The loss of energy through long-wave radiations from the Earth’s surface exceeds the energy received from the Sun at 4:00 p.m.
- Energy received by the Earth from solar radiations continues to exceed the energy lost by outgoing long-wave radiations from the Earth’s surface up to 4:00 p.m.
a) 1 and 3 only
b) 1, 2 and 3
c) 2 and 3 only
d) 1 and 2 only
Answer »Answer: (a)
Transformation of solar energy into heat requires some time, energy received by the earth from solar radiations continues to exceed the energy lost by outgoing long-wave radiations from the earth’s surface from 4.00p.m.
GET Universe, solar system and Astronomy PRACTICE TEST EXERCISES
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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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