# What is an inverse meter?

1. Sep 24, 2007

### velvetymoogle

Hi,
I'm doing some astronomy work and one problem involves using Rydberg's constant. However, it is inverse meters and I'm confused. Does that mean that it is 1/109737361.6 m? Thanks.

2. Sep 24, 2007

### mgb_phys

Yes - it just means per metre.

Last edited: Sep 24, 2007
3. Sep 24, 2007

### velvetymoogle

Okay so if I have the 1/lambda = R (1/nf^2 - 1/ni^2) equation, how would I go about plugging it in? Is it any different than plugging in any other numbers?

4. Sep 29, 2007

### lightgrav

after you multiply R by the fraction,
you probably want to reciprocate the result (1/x)
to obtain the wavelength.