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Study Of The Sun - Questions and Answers

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11. Who suggested that the proton cycle is the source of solar energy
A. Kepler
B. Tycho Brahe
C. Hans Bethe
D. Copernicus
Explanation:
12. Solar energy is due to
A. nuclear fission
B. nuclear fusion
C. both fission and fusion
D. combination of gases
Explanation:
13. If T is the surface temperature of the Sun, the energy radiated is
A. proportional to T2
B. proportional to T4
C. inversely proportional to T4
D. inversely proportional to T2
Explanation:
14. The rate of radiation of energy by the Sun is
A. 4  1026 Js-1
B. 1.969  1030 Js-1
C. 1.496  1011 Js-1
D. 1.39  109 Js-1
Explanation:
15. Most brilliant nova was observed by
A. Bethe
B. Copernicus
C. Tycho Brahe
D. Kepler
Explanation:
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