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Question

How can we explain the reddish appearance of sun at sunrise or sunset?
  1. Scattering of blue light is more than the scattering of red light
  2. Scattering of red light is more than the scattering of blue light
  3. Intensity of sun reduces during sunrise and sunset
  4. Due 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
Verified by Toppr

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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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.
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(b) blue colour is least scattered
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Sun appears red at sunrise and sunset. This is due to light having _________ gets scattered away.

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