Define diffraction.
(N/A) Diffraction is the phenomenon of bending of light around the corners of an obstacle or an aperture of the size comparable to the wavelength of light.
When light waves encounter an obstacle or an opening, they do not travel in a perfectly straight line but spread out into the region of the geometrical shadow.
This bending effect is more pronounced when the size of the obstacle or aperture is small, specifically when it is of the order of the wavelength of the incident light $\lambda$.
When light waves encounter an obstacle or an opening, they do not travel in a perfectly straight line but spread out into the region of the geometrical shadow.
This bending effect is more pronounced when the size of the obstacle or aperture is small, specifically when it is of the order of the wavelength of the incident light $\lambda$.
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