The energy levels of an atom are as shown in figure . Which one of those transition will result in the emission of a photon of wavelength `275 nm`?
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(a) When `lambda=275nm=275xx10^-9m` `E=hv=(hc)/lambda=(6.6xx10^(-34)xx3xx10^8)/(275xx10^-9)J` `=(19.8xx10^(-17))/(274xx1.6xx10^(-19)) eV=4.5eV` `:.` Transition B will result in the emission of photon of `lambda=275nm`. (b) Maximum wavelength has minimum energy . Transition A provides energy of 2eV, which is minimum.
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