Quantum mechanics. Schrodinger question energy level question.

P-Jay1
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Hey, I'm stuck. How do you do question B1 part 2?

Do you substitute h=p\lambda into E=n^2h^2 / 8mL^2 ?

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View attachment PHY215.pdf
 
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no you use the fact that E_{photon} = \frac{h}{\lambda} = E_n - E_0 where 0 stands for the energy of the groundstate
 
Got it, thanks
 
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