EntityQ1309303· pop 12· linked from 114 articlesEinstein coefficientsSign in to savequantities describing probability of absorption or emission of lightConnectionsEinstein familyEntitythermodynamic equilibriumEntityemission spectrumEntityPlanck's lawEntityAlbert EinsteinPersonphysicsEntityQ7085EntitytemperatureEntityInternational Standard Book NumberEntitytheory of relativityEntityspeed of light in vacuumEntityWerner HeisenbergEntityeinsteiniumEntityspecial relativityEntitygeneral relativityEntityelectromagnetic radiationEntityPaul DiracEntityphotonEntitylaserEntitydigital object identifierEntityCategoriesEmission spectroscopy