Course: Science Subtest I
Lesson: Optics and Waves
Topic: Refraction      Page 1 of 15  

Diagnostic Question

1. The index of refraction in a medium is 1.8. What is the speed of light in the medium?

A`5.4  x  10^8` m/s
B`1.7 x 10^8` m/s
C`3.0  x  10^8` m/s
D`1.2  x  10^8` m/s