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A photon of 6eV is incident on a metal surface and the emitted electron is stopped by a retarding potential of -5eV .What will be the work function of the metal??

ANMOL SETH , 11 Years ago
Grade 12th pass
anser 2 Answers
Abhishek Kumar
As the electron is stopped by -5eV,
KE = 5eV
So, Work function of the metal = 6eV – 5eV = 1eV
ApprovedApproved
Last Activity: 11 Years ago
Anish Bhusal
 
By einstein’s photoelectric eqn, 
Work function= incident energy – retarding potential 
So, workfunction= 1eV
 
 
Last Activity: 10 Years ago
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