Q. The sun is visible to us about 1-2 minutes before the actual sunrise and about 1-2 minutes after the actual sunset beacause of

A
Diffraction of light
B
Refraction of light
C
Scattering of light
D
Total internal reflection
Solution:

Change in direction of light when light passes from one medium to another is called REFRACTION OF LIGHT.

EG: Twinkling of stars, mirage in desert

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