Deviation in refraction and TIR

AI Thread Summary
The discussion focuses on calculating the range of angle of deviation when light transitions from glass to water, specifically looking for conditions that yield two angles of incidence. The lowest angle of deviation is identified as 0° when the angle of incidence is 0°. The user is uncertain about determining the maximum angle of deviation and whether it occurs during refraction or total internal reflection (TIR). Suggestions are made to calculate specific angles of deviation, such as 20° and 40°, to better understand the problem. The conversation emphasizes applying Snell's Law to find the necessary angles.
Jon Drake
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Homework Statement


Light is incident from glass (n=1.5) to water (n=1.33). Find out the range of angle of deviation for which there are two angles of incidence.

Homework Equations


Snell's Law

The Attempt at a Solution

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The lowest value of angle of deviation would be 0° when i = 0. But, I am unable to find the highest value. Would it be during refraction or TIR?
 
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Someone please help.
 
Jon Drake said:
Someone please help.
Calculate a couple of angles of deviation - perhaps with angle of incidence 20 and 40 degrees (assuming they are both below the TIR situation) - and then you may see which way to proceed.
 

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