To calculate the Critical Angle (\(\alpha_c\)):
\[ \alpha_c = \sin^{-1}\left(\frac{n2}{n1}\right) \]
Where:
A critical angle is an angle described by Snell's law that is a measure of the refraction of light through different mediums. It is the angle of incidence above which total internal reflection occurs.
Let's assume the following values:
Using the formula:
\[ \alpha_c = \sin^{-1}\left(\frac{1.0}{1.5}\right) = 41.81 \text{ degrees} \]
The Critical Angle is 41.81 degrees.
Let's assume the following values:
Using the formula:
\[ \alpha_c = \sin^{-1}\left(\frac{1.33}{2.0}\right) = 41.14 \text{ degrees} \]
The Critical Angle is 41.14 degrees.