Definitions
There is 1 meaning of the phrase
Critical Angle.
Critical Angle - as a noun
The smallest angle of incidence for which light is totally reflected
Example Sentences
"The critical angle of water in air is approximately 48.6 degrees."
"Fiber optic cables work by using the principle of total internal reflection at the critical angle."
"When light travels from a denser medium to a less dense medium, the critical angle is greater than 90 degrees."
"The critical angle can be calculated using Snell's law and the refractive indices of the two mediums."
"If the angle of incidence is greater than the critical angle, no refraction occurs and total internal reflection takes place."
