Lesson: Phasors

Assume that the maxima are halfway between the minima of a single-slit diffraction pattern. Use the formula where is the phase difference between wavelets from the first and last sources, to determine the intensities of the third and fourth maxima in terms of the intensity of the central maximum.

Use the diameter and circumference of the phasor diagram shown to determine the intensity of the third maximum in terms of the intensity of the central maximum.

Use the diameter and circumference of the phasor diagram shown to determine the intensity of the fourth maximum in terms of the intensity of the central maximum.