The speed of light in a material is $0.41 \mathrm { c }$. What is the critical angle of a light ray at the interface between the material and a vacuum?
A) $22 ^ { \circ }$
B) $24 ^ { \circ }$
C) $17 ^ { \circ }$
D) $19 ^ { \circ }$

Question

Quizplus · Accepted Answer

The Answer of The speed of light in a material is $0.41 \mathrm { c }$. What is the critical angle of a light ray at the interface between the material and a vacuum?
A) $22 ^ { \circ }$
B) $24 ^ { \circ }$
C) $17 ^ { \circ }$
D) $19 ^ { \circ }$

The Speed of Light in a Material Is 0.41c0.41 \mathrm { c }0.41c

The Speed of Light in a Material Is $0.41 \mathrm { c }$