Q.1
Which of these is a dwarf planet?
Q.2
Which of the following planets of the solar system has the longest day?
Q.3
The altitudes of heavenly bodies appear to be greater than they actually are. This is due to ________
Q.4
The Planet amongst the following (other than Saturn), that shows a faint ring is ________.
Q.5
Milky Way Galaxy was first seen by
Q.6
Halley's comet appears once in a period of ________
Q.7
The radiant energy of the sun is transmitted in the form of ________
Q.8
"Sirius", the brightest star outside of the Solar System, is also called ________.
Q.9
Which of the planets is nearest to the earth?
Q.10
Which of the following is the brightest planet?
Q.11
Which of the following is called "Blue Planet"?
Q.12
Which planet is known as 'Morning Star'?
Q.13
Parsec is the unit of measurement of ________
Q.14
Which of the following planets is known as Earth's twin?
Q.15
Which planet is known as the 'Watery Planet' ?
Q.16
The hottest planet is ________
Q.17
In order of their distances from the Sun, which of the following planets lie between Mars and Uranus?
Q.18
In 1610, Galileo Galilei discovered four moons of which planet?
Q.19
Which planet looks reddish in the night sky?
Q.20
What is the difference between asteroids and comets?
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is/are correct?
Q.21
Triton is the Moon of which planet?
Q.22
Pole Star is always seen at one point in the sky whereas other stars are not; this is because ________
Q.23
A black hole is a ________
Q.24
Messenger satellite has been launched by NASA for the study of
Q.25
Consider the following statements:
1. The albedo of an object determines its visual brightness when viewed with reflected light.
2. The albedo of Mercury is much greater than the albedo of the Earth.
Which of the statements given above is/are correct?
Q.26
On which of the following planets water cycle is available?
Q.27
'The length of its day and the tilt of its axis are almost identical to those of the earth'. This is true of ________
Q.28
Which one of the following statements regarding Shooting Stars is incorrect ?
Q.29
Which of the following is indicated by the colour of a star?
Q.30
Which of the following planets do not have satellite?
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