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CGP EDU Academic Team
Published on: August 14, 2026
If the work function (w) of an arbitrary metal is 3.1 eV, find its threshold wavelength and the maximum kinetic energy of the electron emitted when radiation of 300 nm strike the metal surface. (Take hc = 12400 eVÅ)
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
λ 0 = 
= 
= 4000 Å
KE max = 
= 
= 4.133 – 3.1 = 1.033 eV.
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