What is the wavelength of a photon that has energy of 5.25 x 10-19J?
3.79 x 10-7
The wavelength and energy are related by the formula ΔE = hc/λ,
Where h is Planck's constant (= 6.626 x 10-34 Js), c is the speed of light (3.00 x 108 m/s) and λ is the wavelength in meters.
The wavelength can then be calculated by rearranging the above formula as follows: