Thank you for the opportunity to help you with your question!

To get the frequency you need this equation...

c=f*(wavelength) Normally the wavelength is written as the greek letter lambda and has the units of m. c is the speed of light in m/s and f is the frequency in Hertz (s^-1).

Wavelength must me in meters so we must change from mm to m. 310mm*(1m/1000mm)=.31m

Rearrange the equation by dividing both sides by wavelength.

c/(wavelength)=f

(3*10^8)/.31=f

f=967,741,935 Hz (a.k.a. s^-1)

Please let me know if you need any clarification. I'm always happy to answer your questions.

Hi, thank you so much for all of your help! All of the step-by-steps really helped me understand how to thoroughly complete this problem. Thank you again for all of your help! :)