universe & solar system section 4 MCQ Questions & Answers Detailed Explanation
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The following question based on Universe, solar system and Astronomy topic of indian geography mcq
- The Earth receives the Sun’s energy at the infrared end of the spectrum.
- The Earth re-radiates the Sun’s heat as ultraviolet energy.
(a) Both 1 and 2
(b) Neither 1 nor 2
(c) 2 only
(d) 1 only
The correct answers to the above question in:
Answer: (b)
The sun radiates vast quantities of energy into space, across a wide spectrum of wavelengths. Most of the radiant energy from the sun is concentrated in the visible and near-visible parts of the spectrum.
The narrow band of visible light, between 400 and 700 nm, represents 43% of the total radiant energy emitted. Wavelengths shorter than the visible account for 7 to 8% of the total, but are extremely important because of their high energy per photon. The shorter the wavelength of light, the more energy it contains.
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Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
What can be the maximum duration of totality for a solar eclipse?
a) 1 hour 42 minutes
b) There is no maximum duration
c) 7 minutes 40 seconds
d) 12.5 minutes
Answer »Answer: (c)
Question : 2
On which planet would one witness sunrise in the west ?
a) Saturn
b) Mercury
c) Venus
d) Jupiter
Answer »Answer: (c)
The direction of the sunrise depends upon the direction of the rotation of the earth on its axis. Any planet rotation on its axis from west to east will experience sunrise in the east and vice versa. Venus rotates on its axis from east to west and thus experiences sunrise in the west.
Question : 3
Which one of the following is the reason due to which the wind in the southern hemisphere is deflected towards its left?
a) Inclined axis of the Earth
b) Rotation of the Earth
c) Temperature and pressure variations
d) Difference in the water masses of northern and southern hemisphere
Answer »Answer: (b)
The anticlock wise rotation of Earth deflects winds to the right in the northern hemisphere and to the left in the southern hemisphere
Question : 4
The planet Pluto has been abandoned from the group of the conventional planet and kept in the group of dwarf planet by a summit held in
a) Geneva
b) Prague
c) London
d) Paris
Answer »Answer: (b)
The planet Pluto has been declared a dwarf planet at the summit held in Prague. In August 2006 the International Astronomical Union (IAU) downgraded the status of Pluto to that of a “dwarf planet.”
This means that from now on only the rocky worlds of the inner Solar System and the gas giants of the outer system will be designated as planets.
Question : 5
Which planet is called “Evening star”?
a) Venus
b) Saturn
c) Jupiter
d) Mars
Answer »Answer: (a)
Venus is called the Evening star. Because it trails the Sun in the sky and brightens into view immediately after the Sun sets and when the sky is dark enough. When Venus is at its brightest, it appears visible merely minutes after the Sun has set.
Question : 6
The Milky Way Galaxy was first observed by
a) Marconi
b) Newton
c) Maarten Schmidt
d) Galileo
Answer »Answer: (d)
The Milky Way is the galaxy that contains our solar system. This name derives from its appearance as a dim “milky” glowing band arching across the night sky, in which the naked eye cannot distinguish individual stars.
Observational evidence for the Milky Way is made up of distant stars first came when Galileo pointed his telescope towards the Milky Way, observing a large number of faint stars.
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universe & solar system section 13
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