Total Internal Reflection Video Lessons

Concept

# Problem: A thin glass rod is submerged in oil.What is the critical angle for light traveling inside the rod?

###### FREE Expert Solution

Critical angle:

$\overline{){{\mathbf{\theta }}}_{{\mathbf{c}}}{\mathbf{=}}{\mathbf{s}}{\mathbf{i}}{{\mathbf{n}}}^{\mathbf{-}\mathbf{1}}{\mathbf{\left(}}\frac{{\mathbf{\eta }}_{\mathbf{2}}}{{\mathbf{\eta }}_{\mathbf{1}}}{\mathbf{\right)}}}$

η2 = ηoil = 1.46

η1 = ηglass = 1.5

100% (223 ratings)
###### Problem Details

A thin glass rod is submerged in oil.

What is the critical angle for light traveling inside the rod?