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Consider the hydrogen molecule H2 as a rigid rotor with distance of separation of H-atoms r = 1.0Å.

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Consider the hydrogen molecule H2 as a rigid rotor with distance of separation of H-atoms r = 1.0Å. Compute the energy of  J = 2 rotational level.

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= 0.264 × 10−10 MeV 

= 2.64 × 10−5 eV

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