MCQ
The relation between phase difference $(\Delta \phi)$ and path difference $(\Delta x)$ is
- ✓$\Delta \phi=\frac{2 \pi}{\lambda} \Delta x$
- B$\Delta \phi=2 \pi \lambda \Delta x$
- C$\Delta \phi=\frac{2 \pi \lambda}{\Delta x}$
- D$\Delta \phi=\frac{2 \Delta x}{\lambda}$
