Refractive Index (Apparent Depth)

📊 intermediate

$$n = \frac{\text{Real Depth}}{\text{Apparent Depth}}$$

Why an object underwater appears shallower than it is.

Variables & Units

$n$

Refractive Index

Unit: Dimensionless

Key Information

📐 Derived From

Geometry of refracted rays.

💡 Example

A swimming pool appears shallower.

🔧 Applications

Viewing objects in fluids.

⚠️ Constraints

Observation from air above the liquid.

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