Ask your own question, for FREE!
Physics 23 Online
OpenStudy (anonymous):

Why is "c" specified as the speed of light in a ~vacuum~? This seems to imply that the speed of light is different in a vacuum than in a different setting ... is that true? Thanks.

TheSmartOne (thesmartone):

Yes we have only measured the speed of light in a vacuum and that is shown by a c.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!