1.

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 `lambda_(N) ,lambda_(A)` respectively. The ratio `(lambda_(N))/(lambda_(A))` is closest to :A. `10^(-6)`B. `10^(-1)`C. `10^(-10)`D. 10

Answer» Correct Answer - C


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