Both the nucleus and the atom of some element are in their respective first excited states. They get de-excited by emitting photons of wavelengths λ N , λ A respectively. The ratio λ A λ N i

Question

Both the nucleus and the atom of some element are in their respective first excited states. They get de-excited by emitting photons of wavelengths λ N ​ , λ A ​ respectively. The ratio λ A ​ λ N ​ ​ is closest to:

TestHub · Accepted Answer

λ a ​ λ N ​ ​ = E N ​ E a ​ ​ , where E a ​ an d E N ​ are energies of photons from atom and nucleus respectively. E N ​ is of the order of M e V and E a ​ in few e V . So, λ a ​ λ N ​ ​ = 1 0 − 6 .

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