1) What do you understand by diffraction of light?
Ans: Diffraction is the slight bending of light as it passes around the edge of an object. The amount of bending depends on the relative size of the wavelength of light to the size of the opening. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable. When the wave front of a light ray is partially obstructed, only those wavelets which belong to the exposed parts superpose, in such a way that the resulting wave front has a different shape. This permits bending of light around the edges.
Ans: Diffraction is the slight bending of light as it passes around the edge of an object. The amount of bending depends on the relative size of the wavelength of light to the size of the opening. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable. When the wave front of a light ray is partially obstructed, only those wavelets which belong to the exposed parts superpose, in such a way that the resulting wave front has a different shape. This permits bending of light around the edges.
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