Light Enters a Substance from Air At $30.0 ^ { \circ }$

Light enters a substance from air at $30.0 ^ { \circ }$ to the normal. It continues within the substance at $23.0 ^ { \circ }$ to the normal. What is the critical angle for this substance when it is surrounded by air?

A) $53 ^ { \circ }$
B) $12.6 ^ { \circ }$
C) $51.4 ^ { \circ }$
D) $36.7 ^ { \circ }$

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free