is the bending of waves as they pass by a barrier or through an opening. A. Interference
B. Coherence
C. Diffraction
D. None of the above

C. Diffraction

Explanation:

Diffraction is the bending of waves as they pass by a barrier or through an opening. One of the condition for diffraction is that the size of the aperture or obstacle is comparable to the wavelength of light. Fresnel diffraction and Fraunhofer diffraction are two types of diffraction.

Hence, the correct option is (c) "Diffraction".

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