What is the formula for calculating the speed of light in a medium?

[RoseCrye]

1.Find the speed of light in the following in m/s...


(a) water (n = 1.33)

(b) diamond (n = 2.42)

(c) quartz (n = 1.54)

i can't seem to get any of these right...

 

[G01]

Please show some work. Its the rules of the forum. We're not supposed to help you until you do.

 

[wakejosh]

https://www.physicsforums.com/showthread.php?t=167353

go to that thread, I made it earlier today. It should get you going.

 

[RoseCrye]

looking for a formula...

Please show some work. Its the rules of the forum. We're not supposed to help you until you do.

ooops. sorry, didn't think about that. problem was, i wasn't even sure how to do it. didn't have a formula, and i couldn't find one. that was really what i was looking for... i'll try to be more specific next time.