At the first minimum adjacent to the central maximum of a single-slit diffraction pattern the phase difference between the Huygens wavelet from the top of the slit and the wavelet from the midpoint of the slit is:
A)"$\pi$/8 rad"
B)"$\pi$/4 rad"
C)"$\pi$/2 rad"
D)"$\pi$rad"
E)"3$\pi$/2 rad"

Question

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The Answer of At the first minimum adjacent to the central maximum of a single-slit diffraction pattern the phase difference between the Huygens wavelet from the top of the slit and the wavelet from the midpoint of the slit is:
A)"$\pi$/8 rad"
B)"$\pi$/4 rad"
C)"$\pi$/2 rad"
D)"$\pi$rad"
E)"3$\pi$/2 rad"

At the First Minimum Adjacent to the Central Maximum of a Single-Slit