λaλN=ENEa, where EaandEN are energies of photons from atom and nucleus respectively. EN is of the order of MeV and Ea in few eV. So, λaλN=10−6.
JEE Main 2018 — Physics Modern Physics
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 λN,λA respectively. The ratio λAλN is closest to:
Held on 16 Apr 2018 · Verified 6 Jul 2026.
10−1
10−6
10
10−10
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