A ray of light traveling in air enters the end of a rectangular block of a material that has an index of refraction n = 1.35. The largest value of the angle θ for which total internal reflection occurs at the upper surface of the material is approximately
A) 75º.
B) 48º.
C) 56º.
D) 78º.
E) None of these is correct.

Question

A ray of light traveling in air enters the end of a rectangular block of a material that has an index of refraction n = 1.35. The largest value of the angle θ for which total internal reflection occurs at the upper surface of the material is approximately
A) 75º. 
B) 48º. 
C) 56º. 
D) 78º. 
E) None of these is correct.

Quizplus · Accepted Answer

The Answer of  A ray of light traveling in air enters the end of a rectangular block of a material that has an index of refraction n = 1.35. The largest value of the angle θ for which total internal reflection occurs at the upper surface of the material is approximately
A) 75º. 
B) 48º. 
C) 56º. 
D) 78º. 
E) None of these is correct.

A Ray of Light Traveling in Air Enters the End