Question

Speed of light in some media are given below:
Medium
Vacuum
Water
Glass
Speed of light in km
3*10power5
2.25*10power5
2*10power5
Which of these medias having the
6) highest optical density?
(1)
lowest optical density?​

Answer 1

Answer:

Explanation:

1. Glass has the highest optical density as light travels slowest in it.
2. Vacuum has the lowest optical density as light travels the fastest in it.

Hope it helps ;)