Optics question; physics homework... Answered
Hi guys, There is a new physics teacher at school and he asked us this question: an object fell into a very dark hole in the ground and you don't have a flashlight, but the sun is 30 degrees above the horizon.
Using a mirror you have to reflect light from the sun into the hole.
In one case the hole is one meter deep and in the second case it's three meters deep.
The question is: what angle should the mirror be placed in relation to the sun (or horizon) to illuminate the hole?
I don't really remember how to calculate this so if you can help me that would be great.