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(i) Differentiate between Fresnel and Fraunhoffer diffraction (ii)Deduce the missing order for a double slit Fraunhofer...

(i) Differentiate between Fresnel and Fraunhoffer diffraction

(ii)Deduce the missing order for a double slit Fraunhofer diffraction pattern ,if the slit widths are 0.l7mm and they are 0.7mm apart.

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