Question

Question 25 (2 points)

The speed of light in a certain substance is only 92% of what it would be in a vacuum. What is the index of refraction of this substance?

Question 25 options:

A) 

3.1

B) 

4.1

C) 

No option is correct

D) 

1.1

E) 

2.1

Answer 1

$n=\frac cv=1.1$ (ans. D).