Question

A monochromatic light source illuminates a double slit and the resulting interference pattern is observed on a distant screen. Let dbe the center-to-center slit spacing, athe individual slit width, Dthe screen-to-slit distance, and â„“ the adjacent dark line spacing in the interference pattern. The wavelength of the light is then:
A)
B)
C) da/D
D)
E)

Answer

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