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Physics Question on Atoms

A hypothetical atom has only three energy levels. The ground level has energy, E1=−8E_1 = - 8 eV. The two excited states have energies, E2=−6E_2 = - 6 eV and E3=−2E_3 = - 2 eV. Then which of the following wavelengths will not be present in the emission spectrum of this atom?

A

207 nm207\,nm

B

465 nm465 \,nm

C

310 nm310\,nm

D

620 nm620\,nm

Answer

465 nm465 \,nm

Explanation

Solution

E=hcλE = \frac{hc}{\lambda}