Some minerals absorb ultraviolet light and then release lower energy visible light. In the dark at late evening, no color is seen because of lack of stimulation of a. rods. Laser light is a. chaotic. Green light emitted by excited mercury vapor corresponds to a particular energy transition in the mercury atom. A photographer wishes to use a safety light in the darkroom that will emit low energy photons.
Some paints glow in the dark after the lights are turned off.
Green light emitted by excited mercury vapor corresponds to a particular energy transition in the mercury atom. Suppose that two flashlight beams are shone on a white screen, one through a pane of blue glass and the other through a pane of green glass. The critical angle for an air and water interface is 48 degrees. A beam of light passing through a prism has its colors spread out.