A Container of Flint Glass (N = 1 $\degree$ B)647 $\degree$ C)411 $\degree$

question 6

Multiple Choice

A container of flint glass (n = 1.66) 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)89.5 \(\degree\)
• B)64.7 \(\degree\)
• C)41.1 \(\degree\)
• D)37.0 \(\degree\)

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