An electron was trapped in a square well 1.43 [nm] across and 6E₁-IDW high. If the electron transitioned from the second excited state to the first excited state, what is the wavelength of the photon emitted? Note that for U₁ = 6E1-IDW State (n) Finite Square Well 1 0.625E1-IDW 2 2.43E1-IDW 3 5.09 E1-IDW
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