Hi guys, I've just returned from my exams.. I thought it was pretty alright but I think it could've been better. I was stuck with this question. A photoelectric experiment was set up. Monochromatic light is incident on a metal plate, and the photo-electrons are collected at a electrode made of the same metal in a vacuumed glass. The difference in potential between the electrode and the metal plate is V. The power of the light is V, the current flowing through the tube is I and frequency of light is f. Sketch the graph of current I against P when f constant. Sketch graph of current I against V when power P and frequency f constant. How should the graphs look like and why? I have no idea I drew a straight line graph with a +ve gradient for both. Couldn't see the picture. Anyone who could enlighten? Many thanks. If I had prepared more for this I would have donw better. Thanks guys!