Energy of a photon is 1.5 eV/atom. The wavelength of the photon is equal to

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8266nm

82.66nm

82660nm

826.6nm

answer is D.

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Detailed Solution

E=hCλ; E=1.5 ev/atom; 1.5×1.602×10-19J=6.625×10-34J×3×108m/sλ; λ=8.26×10-7m=826.6 nm; or λ(nm)=1240E(ev/atom)

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