The photoelectric effect report

[5ymmetrica1]

Homework Statement

So I recently performed the photoelectric effect experiment in my physics class, where we measured the stopping voltage at different wavelengths of light by using filters with different levels of grating.
I measured the stopping voltage and plotted them on a graph against frequency to gain values for (h) experimental Plancks constant, threshold frequency and the work function

I have come to the point where I need to write a conclusion but I can't think of anything that I have concluded by the use of these formula, which supports my hypothesis.

Homework Equations

f₀ = W/h
W = hf₀

The Attempt at a Solution

I know that as the wavelength of light is changed , it will cause a change in the stopping voltage. But I need a way to explain this in terms of my graphical data, which evaluates the information I recorded by observing the experiment. So far all I can conclude is that a change in the independent variable causes a increase or decrease in the dependent variable which was expected.

I need some more key points which show a deeper understanding of the concept in this experiment and the photoelectric effect.
Can anyone point me in the right direction to what I should be looking for and discussing in this report?

 

[ehild]

Read about photoelectric effect. Try http://physics.info/photoelectric/, for example.

ehild