Question: Coherent light from a laser diode is emitted through a rectangular area 3.0m x 1.5m (horizontal-by-vertical). If the laser light has a wavelength of 680

Coherent light from a laser diode is emitted through a rectangular area 3.0m x 1.5m (horizontal-by-vertical). If the laser light has a wavelength of 680 nm, determine the angle between the first diffraction minima on either side,

(a) above and below the central maximum,

(b) to the left and right of the central maximum.

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