Here is my data from the lens and candle experiment we did on monday. 2 cm lens I (cm) o (cm) 1/I + 1/0 7.8 37.5 0.15467 7 60.5 0.15953 6.8 69.5 0.16139 6.4 100.5 0.16595 6.7 79.5 0.16158 11 15 0.15767 2.2 33.5 0.4849 7.5 infinity 300cm 0.1363 Spotlight i=24 o=5 1/i+1/o=.242 inverted candle i=20 o=10 1/i+1/o=.15 4 cm lens I o 1/I + 1/0 6 35 0.1956 5.5 20 0.2318 5.2 41 0.216 5 50 0.22 5.7 22 0.22 4.8 60 0.225 5.2 70 0.206 4.4 100 0.237 5.2 infinity 300cm 0.195 Spotlight i=24.2 o=3 1/i+1/o=.374 inverted candle i=22 o=5.5 1/i+1/o=.227