9. Quantum Mechanics
Speed of Light
4PRACTICE PROBLEM
The plot below shows the kinetic energy of ejected electrons as a function of the frequency of radiation done to study the photoelectric effect. Calculate the frequency at point A in s-1 if it corresponds to light with a wavelength of 756 nm.
![](https://lightcat-files.s3.amazonaws.com/problem_images/7635dcce2368bc41-1664382871574.jpg)
The plot below shows the kinetic energy of ejected electrons as a function of the frequency of radiation done to study the photoelectric effect. Calculate the frequency at point A in s-1 if it corresponds to light with a wavelength of 756 nm.