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प्रश्न
What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
उत्तर
During sunrise/sunset, the sun looks reddish because, at this stage, Sunrays travel longer distance in the atmosphere and the red light having the largest wavelength is scattered the least. During noon, the sun is directly overhead and sunlight travels relatively shorter distance and almost all colours of light are scattered equally. Thus, the sun appears white at noon.
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संबंधित प्रश्न
Why does the sun seem to rise two minutes before the actual sunrise and set two minutes after the actual sunset ? Explain with the help of labelled diagram.
What colours lie on the two sides of the 'green colour' in the spectrum of white light?
Name the scientist who discovered that sunlight consists of seven colours.
State whether the following statements are true or false:
The scattering away of red light makes the sky appear blue during the day time.
How would the sky appear when seen from the space (or moon)? Give reason for your answer.
Which phenomenon is responsible for making the path of light visible?
Name the point on the lens through which a ray of light passes undeviated.
A beam of blue, green, and yellow light passes through the earth's atmosphere. Name the colour which is scattered the least.
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 bluish colour of water in deep sea is due to ____________.
