Units for wave vector and other?

[Readinglevel^]

Homework Statement

Wave vector = k, what's the unit?

http://en.wikipedia.org/wiki/Uncertainty_principle#Robertson.E2.80.93Schr.C3.B6dinger_relation"

In that equation, what is the name of the h (modifoed h) and what's it's units?

Homework Equations

k = p/h (not a normal h)

The Attempt at a Solution

 

[tiny-tim]

Hi Readinglevel^!

The wave-number of a wave is 2π divided by the wavelength, so it has dimensions of one over length, and is measured in units of m^-1 … see http://en.wikipedia.org/wiki/Wave_vector"

h-bar is the reduced Planck constant, equal to the Planck constant (h) divided by 2π … see http://en.wikipedia.org/wiki/Planck_constant"

h and h-bar both have dimensions of energy over frequency, or energy times time, and so are measured in units of J.s (joule-seconds), or eV.s

 

[Readinglevel^]

Alright, thank you very much! The units had me all messed up.