Brewster's Law

Rarely Tested

Brewster's Law

### Formula

$$\mu=\tan i_p$$

### Terminologies

- ΞΌ β†’ Refractive index.

- ip β†’ Polarizing angle.

### Conditions / Special Cases

At polarizing angle:

$$i_p+r=90^\circ$$

### Usage

- Used to calculate refractive index using polarization.

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