When a metal is exposed to 5.09×102 nm green radiation, it emits an electron with kinetic...
When a metal is exposed to 5.09×102 nm green radiation, it emits an electron with kinetic energy 0.15 eV. What is the threshold frequency for this metal? (1.000 eV = 1.602×10-19 J)
Homework Answers
The energy of a light of photon can be expressed as the sum of work function and kinetic energy of the photon.
Work function is defined as the minimum energy required to remove an electron from the surface of the material .
Threshold frequency is defined as the minimum frequency of the light of photon required to remove an electron from the surface of the material.
The threshold frequency for the metal is 5.528* 1014 S—1.
The detail calculation is shown below.
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