Question

At the time of Sunrise or sunet, the cause of reddening of Sun is due to the Scattering of which rays of light ?
(A)Red Rays. (B) Blue Rays
(C)Both A & B. (D)None of these
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Answer 1

Answer:

a red Ray's

Explanation:

At the time of sunrise and sunset, the sun is near the horizon. The rays from the sun have to travel a larger part of the atmosphere. As the wavelength of red colour is more than that of blue colour (λb≪< λr) and the intensity of scattered light is ∝ 1 λ 4 , therefore, most of the blue light is scattered away