Question: The energy difference (in eV) between two states of a particular atom is 2.541 eV. What are the type and wavelength of the laser that

The energy difference (in eV) between two states of a particular atom is 2.541 eV. What are the type and wavelength of the laser that corresponds to this transition?

A. Kr, 647.1 nm

B. Ar, 514.5 nm

C. Kr, 568.2 nm

D. Ar, 488.0 nm

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