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A light of wavelength 1 is incident on an object of size b. If a screen is at a distance D from the object, identify the correct condition for the obervation of different phenomena a) if b^(2) = D1, Fresnel diffration is obserbed b) if b^(2) gt gt D1, Fraunhofer diffraction is obserbed c) if b^(2) lt lt D1, Fraunhofer diffraction is obserbed d) if b^(2) gt gt D1, the approximation of geometrical optics is applicable |
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Answer» a, B and d are true |
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