Refraction Of Light Video Lessons

Concept

# Problem: Light traveling in water strikes a glass plate at an angle of incidence of 51.5°; part of the beam is reflected and part is refracted. If the reflected and refracted portions make an angle of 91.4° with each other, what is the index of refraction of the glass?

###### FREE Expert Solution

Snell's law:

$\overline{){{\mathbf{\eta }}}_{{\mathbf{1}}}{\mathbf{s}}{\mathbf{i}}{\mathbf{n}}{{\mathbf{\theta }}}_{{\mathbf{1}}}{\mathbf{=}}{{\mathbf{\eta }}}_{{\mathbf{2}}}{\mathbf{s}}{\mathbf{i}}{\mathbf{n}}{{\mathbf{\theta }}}_{{\mathbf{2}}}}$

At the glass water interface:

ηwsin(51.5°) = ηgsinθ

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###### Problem Details

Light traveling in water strikes a glass plate at an angle of incidence of 51.5°; part of the beam is reflected and part is refracted. If the reflected and refracted portions make an angle of 91.4° with each other, what is the index of refraction of the glass?

What scientific concept do you need to know in order to solve this problem?

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Detwiler's class at UW-SEATTLE.