Notes

Phase Change with Time…

Phase Change with Time – If a particle at a distance x from origin has phase ɸ₁ at t₁ and ɸ₂ at t₂.
Then, ɸ₁ (ωt₁ – kx) and ɸ₂ = (ωt₂ – kx)
∴ ɸ₁ – ɸ₂ = ω(t₁ – t₂)
So, phase difference, ∆ɸ = 2π/T × Time difference (∆t)