Determine the critical angle for total internal reflection at the boundary between two optical media. Essential for understanding fiber optics and prism behavior.
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Must be greater than n2 for a critical angle to exist.
Refractive index of the less dense medium.
How this calculator works
The critical angle is the angle of incidence above which all light is reflected back into the denser medium. It only exists when n1 > n2.
Common questions about this calculator
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