A metal is illuminated with a radiation of energy 6.88eV If the kinetic energy of the emitted electrons is 1.5OeV, calculate the work function of the metal.
-
A.
0.22eV -
B.
4.59eV -
C.
5.38eV -
D.
8.38eV -
E.
10.32eV
Correct Answer: Option C
Explanation
Work function = Total energy – kinetic Energy
= 6.88 – 1.50 = 5.38 ev