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Stellar Evoluation - Questions and Answers

Practice questions on Stellar Evoluation.

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6. The mass of our galaxy, Milky Way is about
A. 3  1014 kg
B. 3  1041 kg
C. 4  1026 kg
D. 1.696  1030 kg
Explanation:
7. In the galaxy, the Sun moves at a speed of
A. 250 km/s
B. 250 m/s
C. 150 km/s
D. 150 m/s
Explanation:
8. Thermo-nuclear reactions do not take place in
A. proto star
B. stars
C. the Sun
D. binaries
Explanation:
9. Burning of the shell causes the star’s outer envelope to expand and cool. Now, the temperature drops and the colour of the star
A. is white
B. is black
C. changes from red to white
D. changes from white to red
Explanation:
10. At present, the age of the Sun is about
A. 10 billion years
B. 5 billion years
C. 5 million years
D. 10 million years
Explanation:
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