Which of the following statement is correct?
1
The path difference for constructive interference is (Δx = nλ) and for destructive interference is (Δx = 2nλ)
2
The path difference for constructive interference is (Δx = (n + 1)λ) and for destructive interference is (Δx = (n + 1/2)λ)
3
The path difference for constructive interference is (Δx = nλ) and for destructive interference is (Δx = (2n + 1)λ)
4
The path difference for constructive interference is (Δx = nλ) and for destructive interference is (Δx = (n + 1/2)λ)