Question

2.A photon of wavelength 4 x 10 -7 m strikes on metal surface, work function
of the metal being 2.13 electron volt. Calculate:
a. the energy of the photon in electron volt
b. the kinetic energy of emission.

Answer 1

uravolet radations of 6.2 eV fall on an aluminium surface of the fastest electron emitted is approximately (work function 42 eV), The kinetic energy (in joule)