Help make Alexa smarter on Alexa Answers. Sign in with Amazon


Is the speed of light absolute?

Yes and no. The Maximum speed of light is a constant in a vacuum and in that sense it is absolute. But light does slow down in transparent mediums such as water and glass. This is known as it's refractive index. Additionally, Nothing in the universe is faster than the speed of light.

{{ relativeTimeResolver(1576019544138) }}

Points points 5

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world