Difference between two rotational terms is given by(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\tilde{\nu}=(J+1)(J+2)B-J(J+1)B=2B(J+1)[/tex]

If we put values of [tex]J[/tex] in this expression we get that otational spectrum is equidistant.

[tex]T_r[/tex] - rotational term

[tex]J[/tex] - rotational quantum number

But from this picture spectrum isn't equidistant.

http://www.mwit.ac.th/~physicslab/hbase/molecule/imgmol/rotlev.gif

Can you tell me where is the problem? Thanks!

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# Rotational spectrum - equidistance

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