Infrared Spectroscopy

[Julia Kim 1D]

This is for hw problem number 55 for chapter 1. How do I go about finding the frequency if given the reciprocal centimeters? What exactly are the reciprocal centimeters? Is it frequency divided by speed of light?. If so, do I have to change the cm to m?

[Alli Foreman 2H]

Since c= you can say that . However, since you have you simply take the reciprocal of the equation:
Once you have the equation set up, you can plug in the wavelength you are given. You will need to convert it from centimeters to meters. Then you plug in the constant, c, and you have the frequency.