The Physics Classroom » Video Tutorial » Refraction and Lenses » Critical Angle » Video

Critical Angle Video Tutorial

The Critical Angle Video Tutorial explains what a critical angle is and why it is important to understanding total internal reflection. The formula for critical angle is derived from Snell's Law. It use in calculating the critical angle for three different boundaries is demonstrated. The video lesson answers the following questions:

  1. What is the critical angle?
  2. How do you calculate the critical angle value?
 

Watch on YouTube


 







Visit: Other Refraction and Lenses Video Tutorials

Critical Angle || Video || Lesson Notes || Learning Tools || ​Teacher Resources || ​Slides