The critical angle is the angle of incidence in the optically denser medium for which the light ray is refracted parallel to the boundary of the medium. That is, the angle of refraction is 90°.
Consider the internal reflection of light at the interface between water and ice.
What is the minimum critical angle, in degrees, at which you will get total reflection at this interface? θc= _______
Values are for medium: nwater= 1.333 ; nice= 1.309
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Total Internal Reflection concept. You can view video lessons to learn Total Internal Reflection. Or if you need more Total Internal Reflection practice, you can also practice Total Internal Reflection practice problems.