3) When does the diffraction become appreciable?
Ans: Diffraction becomes appreciable if opening is comparable to the wavelength of light incident. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable.
Ans: Diffraction becomes appreciable if opening is comparable to the wavelength of light incident. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable.
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