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Q.

A gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at

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a

1035 nm

b

325 nm

c

743 nm

d

518 nm

answer is C.

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Detailed Solution

energy values are always additive.Etotal=E1+E2hcλ=hcλ1+hcλ2 1λ=1λ1+1λ21355=1680+1λ2λ2=742.77  nm=743  nm
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