At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is:

Question

At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is:, π 2 radian, π radian, π 8 radian, π 4 radian

MARKS App · Accepted Answer

For first minima A P - B P = λ A P - M P = λ 2 So phase difference = 2 π λ × λ 2 = π

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