Question: Part D - Refraction: Total Internal Reflection: 1. Compare the observed and calculated Critical incident angles for Total Internal Reflection by calculating the % error.

$Part D - Refraction: Total Internal Reflection:$

Part D - Refraction: Total Internal Reflection: 1. Compare the observed and calculated "Critical" incident angles for Total Internal Reflection by calculating the % error. Record values in the below table. 2. Is there a difference between the observed and calculated "Critical" incident angles? Discuss in your lab report. 3. Imagine a flat piece of glass with parallel sides and surrounded by air. Sketch what you think would happen when a light ray is travelling in the glass and the angle of the ray is above the "Critical Angle"? (NOTE: This is analogous to how a fiber optic works!)

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