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

Question

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

Quizplus · Accepted Answer

The Answer of A monochromatic light source illuminates a double slit and the resulting interference pattern is observed on a distant screen. Let d = center-to-center slit spacing, a = individual slit width, D = screen-to-slit distance,  adjacent dark line spacing in the interference pattern. The wavelength of the light is then:
B) Ld/a 
C) da/D

A Monochromatic Light Source Illuminates a Double Slit and the Resulting