5 2.
Ali set up an experiment as shown in the diagram below.
10
T
T
set-up 1
set-up 2
Ali was able to see the candle flame in set-up 1. In set-up 2, the last
piece of cardboard was shifted to the right and he was unable to see
the candle flame.
Which of the following statements describes what Ali was trying to find
out about light?
(1) Light can be reflected.
(2) Light can only pass through holes.
(3) Light can pass through cardboard.
(4) Light can only travel in a straight line.
bahaw