In luminescence after stimulation, the emitted energy is what relative to the exciting radiation energy?

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Multiple Choice

In luminescence after stimulation, the emitted energy is what relative to the exciting radiation energy?

Explanation:
When a material luminates after being stimulated, light comes from electrons dropping from excited states to lower ones. The energy of each emitted photon matches the energy difference of that transition, but not all the absorbed energy ends up as light. A portion is lost as heat to the surrounding lattice through non-radiative processes before a photon is released. As a result, the photons produced in luminescence after stimulation have less energy than the original exciting photons. This is why the emitted energy is lower than the exciting energy.

When a material luminates after being stimulated, light comes from electrons dropping from excited states to lower ones. The energy of each emitted photon matches the energy difference of that transition, but not all the absorbed energy ends up as light. A portion is lost as heat to the surrounding lattice through non-radiative processes before a photon is released. As a result, the photons produced in luminescence after stimulation have less energy than the original exciting photons. This is why the emitted energy is lower than the exciting energy.

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