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1.4 Exercise 10

Avg difficulty 2.5

You can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction of a substance that has a critical angle of 68.4°68.4 ° when submerged in water? What is the substance, based on the reference? (b) What would the critical angle be for this substance in air?

OpenStax University Physics Volume 3, 1.4 Total Internal Reflection, exercise 10

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Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.