A

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Q. In the absence of the earth's atmosphere, sky would appear

  • (A) Blue
  • (B) Deep red
  • (C) White
  • (D) Black
  • Correct Answer - Option(D)
  • Views: 1
  • Filed under category Physics
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Explanation by: Admin
Without an atmosphere the sky appears black, as evidenced by the lunar sky in pictures taken from the moon. But even a black sky has some lightness. At night, the sky always has a faint color, called "skyglow" by astronomers.

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