Important Wave Optics Relations

Important Wave Optics Relations

### Wave Velocity

$$v=\nu\lambda$$

### Fringe Width

$$\beta=\frac{\lambda D}{d}$$

### Phase Difference

$$\phi=\frac{2\pi\Delta x}{\lambda}$$

### Malus Law

$$I=I_0\cos^2\theta$$

### Brewster Law

$$\mu=\tan i_p$$

### Diffraction Condition

$$a\sin\theta=n\lambda$$

### Usage

- Quick formula revision.