GENERAL KNOWLEDGE

GK

BASIC GENERAL KNOWLEDGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The clear sky looks blue because
A
dispersion of light
B
reflection of light
C
refraction of light
D
diffraction of light
Explanation: 

Detailed explanation-1: -The sunlight reaching the earth’s atmosphere is scattered in all the directions by gases and particles in air. In the visible spectrum of colours, blue light is scattered the most as its wavelength is the least. Due to this, the sky appears blue.

Detailed explanation-2: -Hence, scattering is the characteristic property of light which is responsible for the blue colour of the sky.

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