The constellations of stars appear at different positions in the sky at different times during night mainly ________
A. Because earth rotates about its axis
B. Because earth revolves round the sun
C. Because of optical illusion
D. Because celestial bodies are changing their positions all the time
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The 'Solar Corona' mainly consists of ________
A. Cosmic rays
B. Molten lava
C. Gases
D. Ice
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Which of the following is known as the "red planet"?
A. Mercury
B. Jupiter
C. Mars
D. Saturn
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Which planet is known as the Earth's Twin?
A. Venus
B. Mars
C. Uranus
D. Neptune
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Twelve constellations referred to as zodiac are ________
A. Signs of Roman gods
B. Imaginary region that encompass the path of the planets
C. A group of stars
D. None of these
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Which is the first Asian country to reach the orbit of Mars
A. Japan
B. India
C. Pakistan
D. China
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Which of the following statements is/are correct?
1. In comparison to the Jupiter, planet Earth displays eclipses more frequently
2. On Mars, only partial solar eclipses are possible
Select the correct answer.
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
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The energy of Sun is vested in which of the following process?
A. Photoelectric Emission
B. Nuclear Fission
C. Nuclear Fusion
D. Temperate Emission
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The distance of the nearest star besides the sun from the earth is ________
A. 4.9 × 1111 m
B. 95 × 1015 m
C. 4.3 light years
D. 4.2 light years
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While Venus is seen only for one to two hours either after sunset or before sunrise, Jupiter is seen for the whole night whenever it is visible in the sky. The reason for this is that ________
A. Venus is much smaller than Jupiter
B. Venus is much closer to the earth than Jupiter
C. The orbit of Venus is inside the earth's orbit whereas the orbit of Jupiter lies outside the orbit of the earth
D. Venus reflects lesser amount of sunlight than Jupiter
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The Milky way extends through a distance ________
A. 1 light year
B. 8 light years
C. 105 light years
D. 1010 light years
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Which planet shows the phases like Moon?
A. Mercury
B. Mars
C. Venus
D. Pluto
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Which of the following Planets is the brightest?
A. Mercury
B. Mars
C. Jupiter
D. Venus
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Pulsar are
A. Stars moving towards Earth
B. Stars moving away from Earth
C. Rapidly rotating stars
D. Stars with high temperature
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The brightest star in the sky is ________
A. Alfa Centauri
B. Proxima Centauri
C. Sirius
D. Sun
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Lunar Sea refers to ________
A. A small sea on the moon
B. A sea on earth which experiences high tides due to gravitational attraction of the moon
C. A dark plain on the moon
D. A light water body illuminated by the moon-light
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The surface temperature of the Sun is measured
A. 6000°C
B. 12000°C
C. 18000°C
D. 24000°C
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Which planet looks reddish in the night sky?
A. Jupiter
B. Saturn
C. Mars
D. Mercury
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The term 'meteor' is applied to an interplanetary body ________
A. After it enters the atmosphere of the earth
B. After it enters the earth's atmosphere and explodes in mid air as a ball of fire
C. After it enters the earth's atmosphere and lands on the surface of the earth without exploding in mid-air
D. Before it enters the earth's atmosphere
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How many days in one year on mercury?
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