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प्रश्न
To an astronaut in a space-ship, the earth appears ______.
पर्याय
White
Red
Blue
black
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उत्तर
To an astronaut in a space-ship, the earth appears blue.
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संबंधित प्रश्न
Why does sun appear red at sunrise and sunset?
Which colour of the spectrum has
longest wavelength,
Which of the two is scattered more easily, light of shorter wavelengths or light of longer wavelengths?
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
Why are the ‘danger signal’ lights red in colour?
Using the phenomenon of scattering of light, explain why there is a difference in the colour of the sun as it appears during sunrise and at noon.
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
At noon the sun appears white as:
The bluish colour of water in deep sea is due to ____________.
Why is the colour of the clear sky blue?
