Total Internal Reflection: the Critical Angle in Air for a Particular

question 36

Multiple Choice

Total internal reflection: The critical angle in air for a particular type of glass is 39.0°. What is the speed of light in this class glass? (c = 3.00 × 10⁸ m/s)

• A) 1.97 × 10⁸ m/s
• B) 1.94 × 10⁸ m/s
• C) 1.91 × 10⁸ m/s
• D) 1.89 × 10⁸ m/s
• E) 2.00 × 10⁸ m/s

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Definitions:

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Virtual Reality Exposure is a therapy technique that uses virtual reality technology to expose individuals to simulations of their phobias or traumatic memories in a controlled environment.

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