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प्रश्न
Sunset is red because at that time the light coming from the sun has to travel:
पर्याय
lesser thickness of earth's atmosphere
greater thickness of earth's atmosphere
varying thickness of earth's atmosphere
along the horizon
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उत्तर
Greater thickness of the earth's atmosphere
Explanation:
The sun appears red at sunset because, at that time, the sun is near the horizon and, therefore, sunlight has to travel through a greater thickness of the earth's atmosphere.
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संबंधित प्रश्न
What is meant by scattering of light? Use this phenomenon to explain why the clear sky appears blue or the Sun appears reddish at sunrise.
Explain giving reason why the sky appears blue to an observer from the surface of the earth? What will the colour of the sky be for an astronaut staying in the international space station orbiting the earth? Justify your answer giving reason.
Name the scientist who discovered that sunlight consists of seven colours.
In an experiment to study the scattering of light by passing a beam of white light through a colloidal solution of sulphur in a transparent glass tank:
Which colour is observed from the front of the glass tank? Does this colour correspond to the colour of sky on a clear day or the colour of sky around the sun at sunset?
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
What is the colour of the clear sky during day time? Give reason for it.
Which colour of white light is scattered the least? Give reason.
Draw a labelled diagram to show (i) reddish appearance of the sun at the sunrise or the sunset and (ii) white appearance of the sun at noon when it is overhead.
In the atmosphere which colour of light gets scattered the least?
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light ____________.
