Dual Nature of Matter and Radiation - Medium

The work function of a certain metal is

3.31 \times 10^{-19}

J. Then, the maximum kinetic energy of photoelectrons emitted by incident radiation of wavelength

5000

\AA is (Given,

h = 6.62 \times 10^{-34}

Js,

c = 3 \times 10^8

^{-1}

e = 1.6 \times 10^{-19}