Physics, 24.04.2020 16:50 jay0626

When blue light (450 nm) is shone on a particular metal surface, electrons are ejected within a kinetic energy of 2.5 x 10^-20J.

a. Calculate the work function for this metal.
b. Will green light (500 nm) cause an electron to be ejected?
c. What is the longest wavelength light that will eject an electron?

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