# Suppose you calculated the speed of light in an unknown substance to be 4.00 xx10^8 m/s. How could you tell if you made an error in your calculations?

Jun 12, 2017

Possibly by your professor giving you a severe beatdown for incompetence........

#### Explanation:

The speed of light in a vacuum has been repeatedly measured at $3.00 \times {10}^{8} \cdot m \cdot {s}^{-} 1$. AS far as anybody knows this is a fundamental constant. Your measurement had the right order of magnitude, but it lacks in accuracy.........