What were the observations of the photoelectric experiment G

What were the observations of the photoelectric experiment? Give Einstein\'s explanation for the effect.

Solution

1.For a given metal, no photoelectrons are emitted below a certain minimum frequency of incident radiation that frequency is called the Thresold frequency

2.Emission of photoelectrons is instantaneous after the light shines on the metal, with no noticiable time delay . It does not depend on the intensity of the incident radiation.

3.Maximum Kinetic energy of the photoelectron is independent of intensity of incident electromangetic radiation.

4.Emission rate of photo electrons is proportional to Incident electromagnetic radiation.

5. Einstein suggested that a beam of light is not a wave propagating through space, but rather a collection of discrete wave packets (photons), each with energy hf.