# Si units

is 0.05 cm-1
the same as 5 m-1

mjsd
Homework Helper
mmm....why not?

HallsofIvy
Homework Helper
I will confess that I find "cm-1" a puzzling unit! What in the world is measured that way?

However,
$$0.05 cm^{-1}= \frac{5}{100}\frac{1}{cm}= \frac{5}{100 cm}= \frac{5}{1 m}$$
Yes, 0.05 cm-1 is the same as 5 m-1

And, PLEASE, use at least cm^(-1) or m^(-1) to avoid confusion.