# Optics

Learn how light can be described as a ray or wave and how you manipulate light with lasers and optical lenses.
Formula

## Phase Velocity of a Wave (Wavelength, Period)

Video
Level 2 (without higher mathematics)

## Classical Double-Slit Experiment explained simply in 16 minutes!

In this video, Young's double-slit experiment with light is explained in a simple way. How the interference pattern of the double-slit is formed and which role light diffraction plays.

Content of the video
1. ⏲ [00:12] A bit of history
2. ⏲ [02:13] Setup + observation
3. ⏲ [03:43] Interference and wave path difference
4. ⏲ [05:26] Interference pattern explained
5. ⏲ [11:23] Derivation (formula for wavelength)
Lesson
Level 2 (without higher mathematics)

## Double-Slit Experiment with Light

Young's double-slit experiment with light. You learn how the interference pattern of the double-slit is formed and which role light diffraction plays.

Course
Level 2 (without higher mathematics)

## Fundamentals of optics

Here you will learn the basics of geometrical and wave optics. With this you can describe the behavior of light of our everyday life.

Formula