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PeachBanana
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Homework Statement
Calculate the bond length for the NaCl molecule given that three successive wavelengths for rotational transitions are 23.1 mm, 11.6, mm and 7.71 mm.
Homework Equations
I = h*wavelength/4pi*speed of light.
The Attempt at a Solution
I don't understand how to incorporate the wavelengths.
But the thing is, I have three wavelengths, not one. Should I take the difference between the three?