# How to calculate wavelength given speed

Article Info This article was co-authored by Meredith Juncker. Not Helpful 5 Helpful 16. Plug the known quantities into the equation and solve. You can rearrange this equation and solve for speed or frequency if given wavelength.

There are 10 references cited in this article, which can be found at the bottom of the page.

## Wavelength Formula

More success stories All success stories Hide success stories. Wave speed. If they do not make sense when you finish, then check to see if you used the right units. Louis de Broglie 1892-1987 developed a formula to relate this dual wave and particle behavior. Learn more. Thank you. From the time graph, the period and frequency can be obtained.

## De Broglie Wavelength Formula

Just plug in the wave's speed and frequency to solve for the wavelength. Frequency f Hz. To determine the maximum wavelength of light, you simply use the energy equation.

The magnitude of the velocity of this electron can be found by rearranging the de Broglie wavelength formula. Speed can be represented using both metric and imperial units. For particles with mass electrons, protons, etc. Convert to nanometers by multiplying by 10 9. The frequencies of two different sources of sound are in the ratio 3: The formula for frequency is: By continuing to use our site, you agree to our cookie policy.

The wavelength equals 690 nm. Calculate wavelength with the energy equation. If you want to calculate the wavelength of a wave, then all you have to do is plug the wave's speed and wave's frequency into the equation.