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## Homework Statement

In the photoelectric effect, it is assumed that a single electron absorbs a single photon. But, there is a certain probability that a single electron may simultaneously absorb two identical photons from a high-intensity laser. How would such an occurrence affect the threshold frequency, the stopping potential and the equation ## eV_{0} = hf-\phi ##?

## Homework Equations

## The Attempt at a Solution

The threshold frequency is halved because it is possible to have the most loosely bound electron (with binding energy = work function) absorb the two photons.

The equation ## eV_{0} = hf-\phi ## is modified to become ## eV_{0} = 2hf-\phi ## because hf is the energy of one photon.

Therefore, the stopping potential for a given frequency increases from its corresponding earlier value.

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