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 N λ A is closest to:

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 &#955; N , &#160; &#955; A respectively. The ratio &#955; N &#955; A is closest to:

Aicharya · Accepted Answer

&#955; N &#955; a = &#160; E a E N , where E a &#160; a n d &#160; E N are energies of photons from atom and nucleus respectively. E N is of the order of MeV and E a in few eV . So, &#955; N &#955; a = 10 - 6 .

Both the nucleus and the atom of some element are in their respective first excited states. They get…

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