# MP7 - MP7 Atomic Spectroscopy VI-1. Use eq.5 to determine...

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MP7 Atomic Spectroscopy VI-1. Use eq.5 to determine the wavelengths of the red and green Balmer lines. Equ5. λ=dsinθ d=16667Å Red: λ=16667Åsin23.19 λ=6.563E-7 m Green: λ=16667Åsin16.94 λ=4.856E-7 m VI-2. Calculate the wavelengths of these two lines using eq. 4. = λn hcR122 - 1n2 R=13.5826eV h=6.626E-34 Js c=2.997E-8 m/s For red(n=3) = . λ3 6 626E - × . 34 2 997E - . - - 8 2 173E 18122 132 = . - λ3 6 581E 7 m For Green(n=4) = . λ4 6 626E - × . 34 2 997E - . - - 8 2 173E 18122 142 = . - λ4 4 875E 7 m VI-3. Determine the percentage difference σλλ100 for both lines between the theoretical and experimental values. For red: λ cal - λ exp λ × = . cal 100 6 481 - . . × = . % 6 5636 481 100 1 265 For Green:

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λ cal - λ exp λ × = . cal 100 4 875 - . . × = . % 4 8564 875 100 0 390 VI-4. Determine the average wavelength of the doublet from the m=1 measurement. Determine the wavelengths of the components of the doublet from m=2. Calculate the corresponding photon energy difference ∆E in the meV and determine the
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## MP7 - MP7 Atomic Spectroscopy VI-1. Use eq.5 to determine...

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