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2 questions · 2009 · answers as per the UPSC key

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All years of Space Technology & Astronomy · Full UPSC 2009 paper
UPSC 2009 · Q44 · Science & Technology › Space Technology & Astronomy · Save

Who of the following scientists proved that the stars with mass less than 1·44 times the mass of the Sun end up as White Dwarfs when they die ?

(a) Edwin Hubble
(b) S. Chandrashekhar
(c) Stephen Hawking
(d) Steven Weinberg
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Answer: (b) S. Chandrashekhar
UPSC 2009 · Q128 · Science & Technology › Space Technology & Astronomy · Save

India has recently landed its Moon Impact Probe on the Moon. Among the following countries, which one landed such probe on the Moon earlier ?

(a) Australia
(b) Canada
(c) China
(d) Japan
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Answer: (d) Japan