The threshold wavelength of a metal is 230 nm . The maximum K.E. of the electrons ejected from the metal surface by the radiatio

The threshold wavelength of a metal is 230 nm . The maximum K.E. of the electrons ejected from the metal surface by the radiation of wavelength 180 nanometer is
A. 1.5 eV
B. 5.1 eV
C. 5.5 e V
D. 1.0 eV

The threshold wavelength of a metal is 230 nm . The maximum K.E. of the electrons ejected from the metal surface by the radiation of wavelength 180 na

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