EntityQ901448· pop 21· linked from 9 articleseinsteinSign in to saveobsolete unit measuring either one mole of photons or the energy of one mole of photonsConnectionsAlbert EinsteinPersonenergyEntityInternational Standard Book NumberEntityInternational System of UnitsEntityfrequencyEntityelectromagnetic radiationEntityelectromagnetismEntityphotonEntityjouleEntitymoleEntityunit of measurementEntitywavelengthEntityPlanck constantEntityAvogadro constantEntityhistory of chemistryEntityredefinition of SI base unitsEntityphotosynthetically active radiationEntityCategoriesAlbert EinsteinPhotochemistryUnits of amount of substance