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**Photoelectric effect -- experimental**

## Homework Statement

Suppose you are doing an experiment to determine the work function of a metal.*

You get k.e.$_1$, $\nu_1$ and k.e.$_2, \nu_2$.

*

We know that k.e.= $h\nu - W$ but when you solve the simultaneous equations, we have a $h$ slightly different from the textbook value.

Question: In such a situation should you

a) Use the textbook $h$ then average {$W_1,W_2$}; or

b) Simply solve the simultaneous equations for $W$

I believe that the values obtained will be different. And no further experiments are done.

Thank you.

## Homework Equations

see above.

## The Attempt at a Solution

The 2 proposed methods of determining W