A) refraction
B) polarisation
C) diffraction
D) reflection
Correct Answer: C
Solution :
The bending of light rays around the edges of an obstacle is known as diffraction. While refraction is the change in direction of a wave due to a change in its speed. Polarisation is the property of electromagnetic waves such as light, that describes the direction of their transverse electric field. Whereas reflection is a wave phenomenon commonly observed in mirrors.
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