Q 61

A single thin slit forms a diffraction pattern when illuminated with monochromatic light.The fourth minimum of the pattern occurs at an angle of 32.0° away from the central maximum.At what angle does the fifth minimum occur?
A)41.5°
B)41.0°
C)40.5°
D)42.0°
E)42.5°

Q 62

A beam of monochromatic light passes through a slit that is 11.0 μm wide.If the first order dark fringe of the resulting diffraction pattern is at an angle of 4.31° away from the centerline,what is the wavelength of light?
A)827 nm
B)301 nm
C)602 nm
D)402 nm
E)201 nm

Q 63

A beam of light of wavelength 610 nm passes through a slit that is 1.90 µm wide.At what the angle away from the centerline does the first dark fringe occur?
A)9.35°
B)11.4°
C)12.2°
D)39.9°
E)18.7°