Mission RL5: Total Internal Reflection

Mission RL5 pertains to the behavior of lght at a boundary and the effect that the angle of incidence has upon the tendency of the light to refract and/or reflect. The mission consists of 39 questions organized into 10 Question Groups. You must answer one question from each Question Group to complete the mission. The learning outcomes for this mission are ...

Learning Outcomes

  • The student should be able to use an understanding of boundary behavior of light to predict the effect of changing incident angle upon the brightness and relative amount of energy in the reflected and refracted light.
  • The student should be able to identify the two prerequisites for the occurrence of total internal reflection and apply these to determine whether or not it could occur in any given situation.


Launch Mission RL5


Getting Help

If you are not familiar with this topic, then you should first learn about the topic using our written Tutorial or our Video Tutorial:

The Physics Classroom, Refraction and Lenses Unit, Lesson 3, Part a

The Physics Classroom, Refraction and Lenses Unit, Lesson 3, Part b


Video Tutorials:

Total Internal Reflection



Question-Specific Help

Each Question Group has its own Help page with information specific to the question. You can access the Help page from within the mission by tapping on the Help Me! icon (textbook). For your convenience, links to those pages are provided below: