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Answer in one sentence : How long does...

Answer in one sentence :
How long does it take for light to reach the earth from alpha centauri ?

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TARGET PUBLICATION-LIFE CYCLE OF STARS-EXERCISE
  1. Answer in one sentence : Why is the sun an ordinary star in the univ...

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  2. Answer in one sentence : What is the source of nuclear energy in our...

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  3. Answer in one sentence : How long does it take for light to reach th...

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  4. Answer in one sentence : What will happen to the sun if there was no...

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  5. Answer in one sentence : Why does energy of star decrease ?

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  6. Answer in one sentence : Why do stars evolve ?

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  7. Answer in one sentence : How are mass of a star and number of fuels ...

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  8. Answer in one sentence : What is supernova explosion ?

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  9. Answer in one sentence : Which types of stars and their life as a ne...

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  10. Answer in one sentence : What are the three end stages of stars ?

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  11. Answer the following : What are different type of galaxies ? On what...

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  12. Answer the following : How did we obtain all the information about t...

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  13. Answer the following : State properties of the sun .

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  14. Answer the following : If you are the sun , write about your propert...

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  15. Answer the following : How can scientists conclude that properties o...

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  16. Answer the following : Derive the relation : 1 light year = 9.5 x ...

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  17. Answer the following : How do stars form ?

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  18. Answer the following : Why doesn't the hot gas in the stars disperse...

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  19. Answer the following : Why have the properties of the sun remained u...

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  20. Answer the following : Explain the process of evolution of stars .

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