Two waves travelling in the same direction are given by: y1 = 0.2 sin(3πx-20t+φ) and y2 = 0.2 sin(3πx-20t), where x and y are in meters and t is in seconds. If the two waves start at the same moment, then the path difference, ∆x, corresponding to a fully destructive interference is:
1/2 m
1/3 m
3/4 m
2/3 m
4/3 m
Now,
Path difference for destructive interference,
for n = 0
Therefore path difference,
Comments
Leave a comment