The Photoelectric Effect & Atomic Spectra (Edexcel A Level Physics)

increasing the frequency of the incident light.

increasing the intensity of the incident light.

using a metal with a higher threshold frequency.

using a metal with a higher work function.

Emission of photoelectrons occurs immediately the surface is illuminated.  

Photoelectrons are only emitted when the frequency of the light is more than a certain minimum value.  

The maximum kinetic energy of the photoelectrons is independent of the intensity of the incident light. 

When the intensity of the incident light increases, photoelectrons are emitted at a greater rate.