According to Experiment 1, when only Bulb 4
was lit, how far did the students have to move
the apparatus toward the wall in order to achieve
the baseline brightness value?
1.8 meters
1.7 meters
0.3 meters
0.2 meters
According to Experiment 2, the combination of
which two bulbs required the students, during
the trial, to move the apparatus the greatest
distance from its starting position:
