A) reflection
B) scattering
C) polarisation
D) refraction
Correct Answer: B
Solution :
Blue colour of the sky is explained by the scattering phenomena of light. From Rayleighs law, the intensity of light is related to its wavelength as\[I\propto \frac{1}{{{\lambda }^{4}}}\]. So, the shorter waves are scattered with more intensity. In visible light, violet and blue light have minimum wavelength. Out of these two, the blue colour is more intense.
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