universe & solar system section 6 Practice Questions Answers Test with Solutions & More Shortcuts
Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]
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Question : 26 [SSC IT 2007]
The largest planet in our solar system is
a) Saturn
b) Mercury
c) Jupiter
d) Mars
Answer »Answer: (c)
Jupiter is the fifth planet from the Sun and is the largest planet in the solar system. If Jupiter were hollow, more than one thousand Earths could fit inside. It also contains two and a half times the mass of all the other planets combined.
It has a mass of 1.9 × 1027 kg and is 142,800 kilometers (88,736 miles) across the equator.
Question : 27 [SSC SIG 2006]
The light from the Sun reaches the Earth in about—
a) 10 seconds
b) 10 minutes
c) 8 minutes
d) 8 seconds
Answer »Answer: (c)
Light travels at 186,000 miles a second at the Earth is 93 million miles to Sun on average. This works out as 8.33 minutes for light from the Sun to reach Earth.
On average, it takes energy between 10,000 and 170,000 years to leave the sun’s interior and then be emitted from the surface as light. Sunlight, in the broad sense, is the total frequency spectrum of the electromagnetic radiation given off by the Sun, particularly infrared, visible, and ultraviolet light.
On Earth, sunlight is filtered through the Earth’s atmosphere and is obvious as daylight when the Sun is above the horizon.
Question : 28
Isostasy is
a) the phenomenon when the earth’s crust gains weight due to mountain building or glaciation, it deforms and sinks deeper into the mantle.
b) All are correct
c) due to which crust floats on top of the mantle like ice cubes in water.
d) the property of the continental and oceanic crust, that they have the ability to rise and sink.
Answer »Answer: (b)
Question : 29
The Earth is an oblate spheroid and not a perfect sphere. This is because
- The Earth has a rotational motion and the rotational speed increases as one goes from the poles towards the equator.
- The equator experiences greater gravitational pull from the sun.
- The intensity of sunlight received at the equator is greater than that at the poles.
a) Only 3
b) All of these
c) 1 and 2
d) Only 1
Answer »Answer: (d)
The shape of the Earth is very close to that of an oblate spheroid, a sphere flattened along the axis from pole to pole such that there is a bulge around the equator.
This bulge results from the rotation of the Earth and causes the diameter at the equator to be 43 km large than the pole-to-pole diameter.
Question : 30 [PSC (Pre) 2019]
The tail of comet is directed away from the Sun, because
a) The radiation emitted by the Sun exerts a radial pressure on the comet throwing its tail away from the Sun
b) The tail of the Comet always exists in the same orientation
c) As the Comet rotates, the lighter mass of the Comet is attracted by some stars situated in the direction of its tail
d) As the Comet rotate around the Sun, the lighter mass of Comet is pushed away due to centrifugal force alone
Answer »Answer: (a)
IMPORTANT indian geography mcq EXERCISES
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Top 499+ Solar System And Universe Geography MCQ For UPSC »
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Top 500+ Astronomy Geography GK MCQs Quiz For SSC Exams »
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555+ Universe, Solar System & Astronomy MCQs Test & Quiz »
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Top 499+ Universe Solar System MCQs For UPSC SSC IBPS RRB »
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Top 500+ Universe & Astronomy Geography MCQs For SSC CGL »
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Top 500+ Universe, Solar System & Astronomy GK MCQs Quiz »
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New 499+ Universe, Solar System & Astronomy MCQ Live Test »
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Top 500+ Universe and Solar System MCQs Quiz For SSC MTS »
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Top 499+ Universe & Space GK MCQs Quiz For IBPS SBI Exams »
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New 499+ Solar system and Astronomy MCQs Quiz For SSC CGL »
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Top 499+ Solar System, Universe & Astronomy MCQ Live Test »
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Top 500+ Universe & Our Planet Earth MCQs For Govt Exams »
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
-
» Minerals & Energy Resources of India
-
» Industries & Trade in India
-
» Transportation & Ports System of India
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