What is the half angular width of the central bright maximum in the F – McqOptions

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1.	What is the half angular width of the central bright maximum in the Fraunhofer diffraction pattern of a slit of width 12 X 10-7m when the slit is illuminated by monochromatic light of wavelength 6000 Å.
A.	20°
B.	30°
C.	40°
D.	50°
Answer» C. 40°

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