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प्रश्न
To an astronaut in a space-ship, the earth appears ______.
विकल्प
White
Red
Blue
black
उत्तर
To an astronaut in a space-ship, the earth appears blue.
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संबंधित प्रश्न
What is meant by dispersion of white light? Describe the formation of rainbow in the sky with the help of a diagram.
State whether the following statements are true or false:
The scattering away of red light makes the sky appear blue during the day time.
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
What happens when a beam of sunlight enters a dusty room through a window? Explain your answer.
Draw a neat and labelled diagram of the experimental set up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue, and the sun appears red at sunrise and sunset.
Which component of sunlight is scattered away when the sun appears red at sunrise or sunset?
When sunlight enters the earth’s atmosphere, state which colour of light is scattered
- the most and
- which the least.
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.
Draw a labeled diagram to show
(i) the reddish appearance of the sun at the sunrise or the sunset and
(ii) white appearance of the sun at noon when it is overhead.
The colour of clear sky from the earth appears blue but from the space it appears black. Why?
