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प्रश्न
Why does the sun appear red at sunrises and sunset?
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उत्तर
At the time of sunrise and sunset, the light from sun has to travel the longest distance of atmosphere to reach the observer. The light travelling from the sun loses blue light of short wavelength due to scattering, while the red light of long wavelength is scattered a little, so is not lost much. Thus blue light is almost absent in sunlight reaching the observer, while it is rich in red colour.
संबंधित प्रश्न
What is meant by dispersion of white light? Describe the formation of rainbow in the sky with the help of a diagram.
Name some everyday objects:
which absorb all the colours in sunlight
State whether the following statements are true or false:
The scattering away of blue light makes the sun appear red at sunset.
What colour does the sky appear to an astronaut?
Which phenomenon is responsible for making the path of light visible?
The clear sky appears blue because
Is the position of a star as seen by us its true position? Justify your answer.
What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
Blue colour of sky is due to the phenomenon of
The colour of clear sky from the earth appears blue but from the space it appears black. Why?
