Phase from path difference (Δφ = (2π/λ)Δx)
jee-mainjee-advancedneet-ug
Δφ = (2π/λ)Δx
What each symbol means
| Symbol | What it stands for |
|---|---|
| \lambda | Wavelength in medium (m) |
| \Delta x | Path difference (m) |
| \Delta\phi | Phase difference between two waves (rad) |
When to use this
Standard JEE / NCERT assumptions unless stated (paraxial, thin lens, coherent YDSE sources, etc.).