Use Max Planck’s quantum theory to explain the following behavior of photoelectrons.
a) Low-intensity light does not release any photoelectrons. What will happen if the light is made brighter? Explain your reasoning
b) Low-intensity light releases photoelectrons. What will happen if the light is made brighter? Explain your reasoning.
c) Low-intensity light does not release any photoelectrons. What will happen if the frequency of the light is gradually increased? Explain your reasoning.
2. Homework Equations
The Attempt at a Solution
For a metal to emit photoelectrons, the frequency of the light must be above the threshold frequency of the metal. Since this light doesn’t emit any photoelectrons, its frequency must be below the metal’s threshold frequency. Therefore, making the light brighter will still not produce any photoelectrons from the metal.
Since this low-intensity light emits photoelectrons, its frequency is above the threshold frequency. If the brightness is increased, the intensity is also increased, meaning the number of photoelectrons emitted will increase.
If the frequency is increased past the threshold frequency, then the light will begin to emit photoelectrons.
I feel I might be mixing something up here, as my answers to b and c seem very similar. I don't know if they are supposed to. Any help here would be great.