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Constituents Of Universe - Questions and Answers

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31. The expression for mass of the Sun is
A.
B.
C.
D.
Explanation:
32. The solar radiation incident on a planet
A. is entirely reflected
B. is partly reflected
C. is completely absorbed
D. does not heat up the surface
Explanation:
33. If the velocity of molecules is more than the escape velocity on a planet then that planet will have
A. no atmosphere
B. atmosphere
C. more mass
D. less mass
Explanation:
34. The three main constituents of universe are
A. the Sun, Earth and stars
B. solar system, stars and galaxies
C. solar system, planets and stars
D. The Sun, stars and galaxies
Explanation:
35. Kepler’s third law states that
A.
B.
C.
D.
Explanation:
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