Complete the reflection rule

Exercise and reference answers

Missing parts

1. Answer

   lower

   Choices

   1. higher
   2. lower

2. Answer

   greater than

   Choices

   1. greater than
   2. smaller than

Complete the statement

Total internal reflection needs light heading into a medium of {0} optical density, with the angle of incidence {1} the critical angle.

Instructions

Tap each blank, then pick the word that finishes the rule.

Explanation