According to Experiment 2, it is reasonable to
conclude that, if the students had performed a
trial with Bulbs 3 and 4 lit, the distance from the
apparatus to the wall measured at the end of the
trial would have been which of the following?
3.6 meters
3.8 meters
3.9 meters
Greater than 3.9 meters
According to the passage, given that the
baseline brightness value is 10 lux, which of the
following arrangements would result in a light-
meter reading greater than 10 lux?
Bulbs 1 and 3 lit on the apparatus positioned
3.9 m from the wall.
Bulbs 2 and 3 lit on the apparatus positioned
3.9 m from the wall.
Bulb 1 lit on the apparatus positioned 1.5 m
from the wall.
Bulb 5 lit on the apparatus positioned 2.0 m
from the wall.
