Brewster's Law

📊 intermediate

$$\tan \theta_p = \frac{n_2}{n_1}$$

An angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface.

Variables & Units

$\theta_p$

Brewster's Angle

Unit: Degrees

Key Information

📐 Derived From

Refractive properties and phase shift on reflection.

💡 Example

Calculating polarization angle for light reflecting off water.

🔧 Applications

Polarizing filters and lasers.

⚠️ Constraints

Applies to non-magnetic dielectrics.

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