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interference and diffraction summary (single slit diffraction…
interference and diffraction summary
single slit diffraction
number of slits: 1
width and spacing: not equal
interference pattern
monochromatic light
bright central band (constructive)
dimmer, narrower bands on either sides (destructive)
polychromatic light
a combination of patterns of all the colors
double slit diffraction
number of slits: 2
width and spacing: equal
interference pattern
monochromatic light
polychromatic light
diffraction grating
number of slits: 100,000 per cm
width and spacing: equal
grating spectroscope
number of slits: 1
width and spacing: not equal