A metal surface of work function 1.07 eV is irradiated with light of w – McqOptions

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1.	A metal surface of work function 1.07 eV is irradiated with light of wavelength 332 nm. The retarding potential required to stop the escape of photo-electrons is [MP PMT 1992]
A.	4.81 eV
B.	3.74 eV
C.	2.66 eV
D.	1.07 eV
Answer» D. 1.07 eV

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