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प्रश्न
Why does the sky appear dark (or black) to an astronaut instead of blue?
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उत्तर
The sky appears dark (or black) to an astronaut instead of blue because there is no atmosphere containing air molecules in outer space to scatter sunlight.
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संबंधित प्रश्न
With the help of a labelled diagram, explain why the sun appears reddish at the sun-rise and the sun-set.
Which colour of light has the shorter wavelength − red or violet?
Name some everyday objects:
which reflect all the colours in sunlight
Why are the ‘danger signal’ lights red in colour?
Explain in brief the reason for the following :
Advanced sunrise
Explain in brief the reason for the following:
Twinkling of stars
Why is the Tyndall effect shown by colloidal particles?
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
The clear sky appears blue because
Blue colour of sky is due to the phenomenon of
