Question

The work function of a certain metal is
3.31 x 10-19 J. Then the maximum kinetic energy
of photoelectrons emitted by incident radiation
of wavelength 5000Aº is
(given h = 6.62 x 10-34 J -s, C = 3 x 108ms-1,
e = 1.6x10-19 coul.)
1) 2. 48 eV
2) 0.41 eV
3) 2.07 eV
4) 0. 82 eV​

Answer 1

Explanation:

energy of photoelectron =3.96×10-19

option no 2nd is answer