Physics, 07.03.2020 01:47 english7750

A person standing in the middle of a long straight road sees a truck with its headlights on approaching in the distance. The trucks headlights are 3 m apart. Assuming the headlights are point sources emitting yellow light of wavelength 600 nm and the diameter of the human pupil is 5 mm, approximately how far is the truck from the person when he can first resolve the two headlights as separate sources

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A person standing in the middle of a long straight road sees a truck with its headlights on approach...