When light of frequency equal to 2.11 x 10^-15 s-1 shines on the surface of gold metal, the kinetic energy of ejected electrons is found to be 5.83 x 10^-19 J. What is the work function of gold?

Work function,

Explanation:

Given that,

Frequency of light,

Kinetic energy of the ejected electrons,

We need to find the work function of the gold. Let it is W.

Using Einstein's photoelectric equation as follows :

So, the work function of gold is .

trig 15.3 cos