The Diagram Shows Total Internal Reflection

question 28

Multiple Choice

The diagram shows total internal reflection.Which of the following statements is NOT true?

• A)angle AON is the angle of incidence
• B)angle AON = angle BON
• C)angle AON must be the critical angle
• D)the speed of light in medium II is greater than that in medium I
• E)if angle AON were increased, there would still be total internal reflection

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