P | r1 | r2 | Δr | C/D
-----|----|----|-----|-----
Q | 2λ | 3λ | 1λ | C
R | 4λ | 3λ | 1λ | D
The figure below shows the circular wave fronts emitted by two sources. Make a table with rows labeled P, Q, and R and columns labeled r1, r2, Δr, and C/D. Fill in the table for points P, Q and R, giving distances as multiples of λ and indicating, with a C or a D, whether the interference at the point is constructive or destructive.
i. imgur. com /X0XoE. png
1 answer