We think you are located in South Africa. Is this correct?

End Of Chapter Exercises

Exercise 12.3 See solutions

Calculate the energy of a photon of red light with a wavelength of .

We first calculate the energy of the photons:

Next convert the work function energy into J:

The energy of the photons is less than the work function of calcium and so no electrons will be emitted.

Will ultraviolet light with a wavelength of be able to emit electrons from a sheet of calcium with a work function of ?

See solutions