Solar cells + power Watch
"A solar cell measures 1cm by 5cm and receives 400mW of power from a small light bulb 50cm away.
a) What is the intensity of the illumination on the cell?
b) What would the intensity be:
d) How close would it have to be to the bulb to produce 200mW of power?"
I'm not expecting people to do this for me or anything, but I'd appreciate a point in the right direction or something. This is a really sorry state of affairs.
B) inverse square law.
C) what is 5% of 400?
D) if you can do the first 3 you should be able to work out this one.