20 At the first minimum adjacent to the centra maximum of a single slit diffraction pattern the phase difference between the

Question

20 At the first minimum adjacent to the centra maximum of a single slit diffraction pattern the phase difference between the Huygen s wavele from the edge of the slit and the wavelet from th mid point of the slit is 2100 1 radian T 3 radian TC 2 radian 4 4 radian A

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