[SOLVED] another SAT II Physics question: optics 1. The problem statement, all variables and given/known data A point source light which has an intensity level of 10 candle power at a distance of 2 m will have an intensity at 4 m of A) .5 cp B) 1 cp C) 2.5 cp D) 5 cp E) 10 cp 2. Relevant equations i don't really know...my book doesn't really address this i don't even know what a point source light does. 3. The attempt at a solution i tried to set up a proportion, but i got 20 as my answer, which is obviously wrong! PLEASE HELP! anything to start me off would be greatly appreciated!