Calculate the wavelength of a photon

A ground state H atom absorbs a photon of energy 2. As the atom relaxes, it emits two photons: one of wavelength nm to reach an intermediate level, and a second to reach the ground state. What is the wavelength of the second photon emitted?

Last Updated: January 12, Fact Checked. This article was co-authored by Meredith Juncker, PhD. Her studies are focused on proteins and neurodegenerative diseases. There are 7 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 1,, times.

Calculate the wavelength of a photon

Many, many problems in physics and chemistry require you to use an energy-to-wavelength calculator. Do you have an energy transition between two states and wonder what wavelength of light this corresponds to? Have you the energy of two waves that have undergone a constructive or destructive interaction and want to find the new wavelength? If so, you've found the right place in Omni's energy-to-wavelength calculator, which will help you learn how to calculate wavelength from energy for a photon or wave! The energy to wavelength formula relies upon two other equations: the wave speed equation and the Planck—Einstein relation. The wave speed equation looks like this:. In most cases, we are looking at how a wave travels through a vacuum. In this case, v v v is actually equal to the speed of light, ,, meters per second , which we denote as c c c. Manipulation of the formulas is then required. First, replace v v v with c c c.

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The wavelength calculator can assist you in determining the relationship between frequency and wavelength. Continue reading if you are here to learn how to calculate the frequency of a wave or look for the wavelength formula. Wave velocity v is how fast a wave propagates in a given medium. Its unit is meter per second. Check the speed calculator for more information about speed and velocity. It depends on the medium in which a wave travels.

Calculate the wavelength of a photon

Many, many problems in physics and chemistry require you to use an energy-to-wavelength calculator. Do you have an energy transition between two states and wonder what wavelength of light this corresponds to? Have you the energy of two waves that have undergone a constructive or destructive interaction and want to find the new wavelength? If so, you've found the right place in Omni's energy-to-wavelength calculator, which will help you learn how to calculate wavelength from energy for a photon or wave! The energy to wavelength formula relies upon two other equations: the wave speed equation and the Planck—Einstein relation. The wave speed equation looks like this:. In most cases, we are looking at how a wave travels through a vacuum.

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How do I calculate energy from wavelength? Sample Calculating Wavelength Practice Answers. Ente Jan 2, If you found the right value for the wavelength, multiplying by the frequency should get you the wave speed you started with. Table of contents The energy to wavelength formula How do I calculate wavelength from energy? Watch Articles. Thanks to all authors for creating a page that has been read 1,, times. This image may not be used by other entities without the express written consent of wikiHow, Inc. Use the sound wavelength calculator to study the behavior of sound waves in different mediums. Sign up for wikiHow's weekly email newsletter Subscribe You're all set!

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Arts and Entertainment Artwork Books Movies. Check your work by calculating 4. In this case, v v v is actually equal to the speed of light, ,, meters per second , which we denote as c c c. First, replace v v v with c c c. I will need to come back many times to grasp more, but I'm pleased at my increased awareness. As the wavelength increases, the energy of the photon decreases. Eduardo G. Part 3. People also viewed See all. Download Article Explore this Article parts. This is the wave speed you started with, so your answer is correct. Therefore, as the wavelength gets smaller, the constant is divided up by less, and so photon energy increases. Please log in with your username or email to continue.