#4.5.1a
the particulate nature (photon model) of electromagnetic radiation
#4.5.1b
photon as a quantum of energy of electromagnetic radiation
#4.5.1c
energy of a photon; \(E = hf \) and \(E = \dfrac{hc}{λ} \)
#4.5.1d
the electronvolt (eV) as a unit of energy
#4.5.1e
(i) using LEDs and the equation \(eV = \dfrac{hc}{λ} \) to estimate the value of Planck constant h
No knowledge of semiconductor theory is required.
(ii) Determine the Planck constant using different coloured LEDs.
PAG6