# Physics

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Background: A monochromatic laser is exciting hydrogen atoms from the n=2 to state to the n=5 state.

Question: What is the shortest wavelength observed?
-I believe that it will be from n=5 to n=4, but I am not sure what equation to use or how to use the n values...

• Physics -

short wavelenght, highest energy. Highest energy means greatest possible change.

So calculate yours, then try 2 to 5

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