Photoelectric EffectMedium
Question
The kinetic energy of most energetic electrons emitted from a metallic surface is doubled when the wavelength of the incident radiation is changed from 400 nm to 310 nm the work-function of the metal is :
Options
A.0.9 eV
B.1.7 eV
C.2.2 eV
D.3.1 eV
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