1. At which of the labeled point(s) would constructive interference occur?
a. B only
b. A, B, and C
c. D, E, and F
d. A and B
Both points A and B are on locations where a crest meets a crest.
2. How many of the six labeled points represent anti-nodes?
|a. 1||b. 2||c. 3||d. 4||e. 6|
Only points A and B are antinodes; the other points are points where crests and troughs meet.