When will I get total reflection?

Thread starter CH1991
Start date Dec 14, 2011
Tags

Reflection

AI Thread Summary

Total reflection occurs when the angle of incidence exceeds the critical angle, leading to sin(theta) being greater than 1. The direction of a light ray does indeed change when it passes through a plan-parallel slab, and this change can be analyzed using Snell's Law. The discussion emphasizes the importance of understanding the critical angle to predict total reflection accurately. Applying Snell's Law allows for tracking the light ray's path through different media. Understanding these principles is crucial for mastering concepts related to optics and light behavior.

Dec 14, 2011

CH1991

Homework Statement

http://i.imgur.com/JElvT.png

Homework Equations

The Attempt at a Solution

When will I get total reflection? sin(theta)>1?

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Dec 14, 2011

ehild

Science Advisor

Homework Helper

Does the direction of the light ray change when it traverses a plan-parallel slab?

ehild

Dec 14, 2011

CH1991

It does,I guess...

Dec 14, 2011

ehild

Science Advisor

Homework Helper

And how much does it change? Can you follow the ray by applying Snell's Law?

ehild

Dec 14, 2011

CH1991

Thank you!

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