Question

How does the Compton effect differ from the photoelectric effect?

Answer 1

In compton effect when light incident on surface of a material the photons make elastic collision with electrons and get scattered.

The scattered light wavelength will be greater than incident light.

In photonelectric effect the photons are obsorbed by the electrons and electrons are liberated from the metal surafces.

Photoelectric effect takes place whenever the incident light has cenrtian minimum frequency. This frequency is called threshold frequency.

But compton effect takes place at any frequency or at any wavelength.