Question by : What is the minimum frequency (and longest wavelength) of radiation for which the detector registers a respons?
In a demonstration of the photoelectric effect, suppose that a minimum energy of 5.2×10^−19J (3.2 eV ) is required to dislodge an electron from a metal surface.
Answer by arbylee
h = J/v
xHz = (5.2*10^-19 J)/(6.626*10^34 J/s)
wavelength = speed/frequency
speed of light= 8.00*10^8m/s
I dont have my calculator but just plug these equations in and u have ur answer
Add your own answer in the comments!