IB Physics SL E.1.5 Photon energy
IB Physics SL E.1.5 Photon energy
Practise calculating photon energy, frequency and wavelength, and linking energy gaps in atoms to the radiation emitted or absorbed.
How this is tested
- calculate photon energy from a given wavelength using E = hc/λ, with clear unit conversion to J or eV
- link atomic level gaps to absorbed or emitted radiation by choosing the smallest or largest ΔE correctly
- apply E = hf to compare intensity changes when wavelength and photon rate both change