Explanation : Spontaneous emission is what you see with most “glow in the dark” toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.
555555555526. After the first photons of light are produced, which process is responsible for amplification of the light? (a) Blackbody radiation (b) Stimulated emission (c) Planck's radiation (d) Einstein oscillation