Apoint source of light illuminates an aperture 4.00m away. a 18.0 cm -wide bright patch of light appears on a screen 2.00m behind the aperture.
i have been trying to use the equation w=(2*wavelength*distance)/aperature width. however, i am not given wavelength and the type of light is not specified. also, does the source of light being 4.00m away from the aperature even matter?
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Apoint source of light illuminates an aperture 4.00m away. a 18.0 cm -wide bright patch of light app...
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