Question
What is Phase Change with Position?
Answer
Phase Change with Position – At any instant t, if ɸ1 and ɸ2 are the phase of two particle whose distances from origin are x1 and x2, respectively. Then, ɸ1 = (ωt – kx1) and ɸ2 = (ωt – kx2) ⇒ ∆ɸ = k (∆x) ⇒ (∆ɸ) ⇒ ɸ1 – ɸ2 = k(x2 – x1) So, phase difference, ∆ɸ = 2π/λ × Path difference (∆x)
