Q. Speed of light is maximum in which of the following mediums?
Answer: vacuum
Notes: The speed of light in a vacuum is 186,282 miles per second. Nothing can travel faster than the speed of light in a vacuum. A vacuum is a region with no matter in it.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 46 in Physics GK 19 - Light and Human Eye in above course in App.