What would happen if the potential difference at the collection plate is changed?

To examine this we will examine the variables, the potential difference vs photocurrent at a set intensity.

Reset the wavelength to 397 nm and the intensity to 25%.

Increase the potential difference in 2V increments and take current reading and take observations of the electrons.. Tabulate your data.

Now repeat this experiment but making the potential difference negative use 0.1 increments and then smaller increments as the photo current approaches zero. Take observations of the electrons. Type in the value rather than use the slider

Combine both tables and plot the data.

Repeat this process for 50%, 75% and 100%. Plot each set of data as a different line on the same graph.

Do the positive results support the wave model of light? Explain

Do the negative results support the wave model of light? Explain

Explain the term stopping voltage. What is going on? What is the stopping voltage a measure of?