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Question

The sun appears red at the time of sun-rise and sun-set. This is because:
  1. red colour is most scattered
  2. the sun is red in colour
  3. our eyes can sense only red colour
  4. red colour is least scattered

A
red colour is least scattered
B
our eyes can sense only red colour
C
red colour is most scattered
D
the sun is red in colour
Solution
Verified by Toppr

Among the constituent colours of white light, red has the longest wavelength and hence least frequency. Scattering is inversely proportional to wavelength .As a result, red is least scattered among all colours. So, red colour reaches our eyes while all other colours scatter away during sun-rise and sun-set.

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