Question: A point source with luminous intensity I0 = 100 cd is positioned at a distance s = 20.0 cm from the crest of a concave

A point source with luminous intensity I0 = 100 cd is positioned at a distance s = 20.0 cm from the crest of a concave mirror with focal length f = 25.0 cm. Find the luminous intensity of the reflected ray if the reflection coefficient of the mirror is p = 0.80.

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