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# How can we explain the reddish appearance of sun at sunrise or sunset? Scattering of blue light is more than the scattering of red lightScattering of red light is more than the scattering of blue lightIntensity of sun reduces during sunrise and sunsetDue to the view angle, it appears blue

A
Scattering of blue light is more than the scattering of red light
B
Due to the view angle, it appears blue
C
Intensity of sun reduces during sunrise and sunset
D
Scattering of red light is more than the scattering of blue light
Solution
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#### During sunrise or sunset, the light has to pass through greater distance in the atmosphere. The blue light is removed as it gets scattered the most while the red colour is less scattered and reaches the observer. Thus, we find reddish colour of the sun during sunrise or sunset.

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Q1
Sun appears to be red during sunset and sunrise because blue light scatters more than red light in atmosphere. (Yes/No)
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Q2

(a) 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.
(b) Out of blue light and red light, which one is scattered more easily ?
(c) Which component of sunlight is scattered away when the sun appears red at sunrise or sunset ?
(d) What causes the scattering of blue component of sunlight in the atmosphere ?

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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.
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The red colour of the sun at the time of sunrise and sunset is because:
(a) red colour is least scattered
(b) blue colour is least scattered
(c) red colour is most scattered
(d) blue colour is most scattered
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Q5
Sun appears red at sunrise and sunset. This is due to light having _________ gets scattered away.

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