Watch this video to see demonstrations of how to use the equation C=λf to solve a problem.
(Note: In this video the instructor uses “v” to represent frequency instead of “f.” It does not change the outcome of the solution.)
Source: whitwellhigh, Calculating Frequency Given Wavelength, YouTube
Now try out these practice problems. Work the following problems on a scratch sheet of paper. If you get stuck, go back and watch the video tutorials again. Once you think you have the correct answer, click on the answer box to see the solution.