universe & solar system section 10 Practice Questions Answers Test with Solutions & More Shortcuts
Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]
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Question : 36
Consider the following statements.
- The tropical year is shorter than the sidereal year.
- The solar day is longer than the sidereal day.
a) Both 1 and 2
b) Neither 1 nor 2
c) 2 only
d) 1 only
Answer »Answer: (d)
1 Sidereal year = 365.2564 days;
1 Tropical year = 365.2422 days;
So difference is 0.0142 days.
Question : 38 [SSC CGLT 2011]
The outermost layer of the Sun is called
a) Corona
b) Lithosphere
c) Photosphere
d) Chromosphere
Answer »Answer: (a)
The outermost layer of the sun is the corona. Only visible during eclipses, it is a low-density cloud of plasma with higher transparency than the inner layers. The white corona is a million times less bright than the inner layers of the sun but is many times larger.
A corona is a type of plasma “atmosphere” of the Sun or other celestial body, extending millions of kilometers into space, most easily seen during a total solar eclipse, but also observable in a coronagraph.
The word “corona” itself derived from Latin, meaning crown. The high temperature of the corona gives it unusual spectral features
Question : 39
Consider the following statements:
- When the Earth comes between the moon and the sun it is called solar eclipse.
- When the moon comes between the sun and the Earth it is called Lunar eclipse.
a) 2 only
b) None
c) 1 and 2
d) 1 only
Answer »Answer: (b)
Lunar Eclipse:The moon is said to be in eclipse when the Earth comes between the moon and the sun. The shadow cast by the Earth on the moon is called an eclipse.
Solar Eclipse:The sun is said to be in eclipse when the Moon comes between the Sun and the Earth. There is either a partial or total obstruction of the Sun’s light when viewed from the Earth.
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Universe, solar system and Astronomy Shortcuts »
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indian geography mcq CATEGORIES
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» Nature & Scope of Geography
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» Universe, solar system and Astronomy
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» Geomorphology & Earth landforms
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» Atmosphere & Climatology
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» Hydrosphere & Oceanography
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» Pedology or Soil & Agriculture
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» Ecology & Bio geography
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» World Physical Geography
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» World Human Geography (Population)
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» World Economic Geography (Industry, Trade, Transportation & Agriculture)
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» World Country, Capital, Area, Currency, Parliament, Religion, New & old name of country
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» Physiography & Geomorphology of India
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» Indian Drainage, Irrigation and Rivers & River Projects
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» Indian Climate
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» Ecology, Environment, Forest, Naturals vegetations of India & National Park of India
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» Indian Agriculture & Animal Husbandry
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» Minerals & Energy Resources of India
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» Industries & Trade in India
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» Transportation & Ports System of India
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