Linked from

The 59 pages that link to Photoelectric effect, each with the reason it gives.

• History of quantum mechanicsRelated: Its frequency dependence supported Einstein's light-quantum explanation.

• Oil-drop experimentRelated: Millikan's other major research program tested Einstein's explanation using a distinct measurement method.

• Radiation (physics)Related: It demonstrates how matter absorbs radiation in discrete energy transfers.

• De Broglie equationRelated: Einstein’s light-quantum explanation provided a precedent for matter’s wave-particle symmetry.

• Gamma-ray techniquesRelated: Full-energy absorption through this interaction supports gamma-ray imaging and spectroscopy.

• Owen RichardsonRelated: Richardson also investigated this effect, which linked his experimental work to theories of light and electrons.

• PhototubeRelated: It is the physical process that releases electrons from the phototube’s cathode.

• Planck postulateRelated: Einstein used light quanta to explain its frequency-dependent behavior.

• QuantumRelated: Its frequency-dependent threshold supported the idea that light transfers energy in quanta.