2. Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.66 eV...
2. Radiation of a certain wavelength causes
electrons with a maximum kinetic energy of 0.66 eV to be ejected
from a metal whose work function is 2.50 eV. What will be the
maximum kinetic energy with which this same radiation ejects
electrons from another metal whose work function is 2.23 eV?
eV
Homework Answers
According to Einstein hv = work function + max. Kinetic energy
Where hv energy of incident wave
hv= 2.5 + 0.66 = 3.16eV
So for work function 2.23eV
3.16 = 2.23 + max. Kinetic energy
Max. Kinetic energy = 3.16 - 2.23 = 0.93 eV
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