The maximum kinetic energy KE e of ejected electrons (photoelectrons) is given by K E e = h f - B E , where hf is the photon energy and BE is the binding energy (or work function) of the electron in the particular… Analysis of blackbody radiation led to the field of quantum mechanics, which states that radiated energy can only exist in discrete quantum states

As Einstein explained, all characteristics of the photoelectric effect are due to the interaction of individual photons with individual electrons A blackbody will radiate energy across all wavelengths of the electromagnetic spectrum

quantum — discrete packet or bundle of a physical entity such as energy. blackbody — object that absorbs all radiated energy that strikes it and also emits energy across all wavelengths of the electromagnetic spectrum. photon energy and BE — the binding energy (or work function) of the electron in the particular…. photoelectric effect — phenomenon whereby some materials eject electrons when exposed to light.