How is Alexander's dark band related with angle formed by human eye?
Answer (1)
5th Jun, 2020
Hello student,
This is actually related to rainbow. There is a dark band Between primary and secondary rainbow, made due to zero light scattering in this region,known as Alexander's dark band. One more reason behind this is is the angle made at the eye by the scattered rays wrt incident light of the sun which lies between 42.5 to 50 degree angle.
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