A Container of Flint Glass (N = 1

question 61

Multiple Choice

A container of flint glass (n = 1.57) holds a small quantity of benzene (n = 1.501) .What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

• A) 87.5°
• B) 73.0°
• C) 41.8°
• D) 39.6°
• E) ​86.0º

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