600nm infrared light is passed through a 0.5mm slit. A pattern of light and dark lines appears on a screen 1.5m away. What is the spacing between dark lines?
Here ,
wavelength = 600 nm
d = 0.50 mm
D = 1.5 m
spacing between dark lines = wavelength * D/d
spacing between dark lines = 600 *10^-9 * 1.50/(0.50 *10^-3)
spacing between dark lines = 0.0018 m
the spacing between dark lines is 0.0018 m
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