It could be spontaneous, carbon, nocturnal, pollutant etc.,
depending on what's doing the emitting.
beta emission
alpha
neutron emission
absorption spectrum
quality of reflector, type of light emission, (filament,gas filled)
a type of nebula
Flluorescence is strong in systems in which emission occurs from the state with the lowest energy.
The laser causes the stimulated emission of radiation. The light emitted is monochromatic and coherent,that is plane polarised. I imagine that spontaneous emission occurs in a Light emitting diode ,monochromatic but not polarised. Hope this is of help
Lots of wrong answers out there, tested this on school, the answer is: Drops from a higher to a lower energy level
Emission is something be spread out, while absorption is something being taken in.
falls from a higher energy state to a lower energy state.
continuous emission
thermionic emission occurs when the filaments are heated to a certain degree, causing the electrons to boil off and form a space charge or electron cloud.
beta emission
Applications of uranium as nuclear fuel are independent from the emission of gamma, alpha, beta rays, etc.
alpha
neutron emission