Energy levels A, B and C of an atom correspond to increasing values of energy i.e. E _ A…
Physics · Class 12 · CBSE — Atoms
Energy levels A, B and C of an atom correspond to increasing values of energy i.e. \(\mathrm{E}_{\mathrm{A}} \lt \mathrm{E}_{\mathrm{B}} \lt \mathrm{E}_{\mathrm{C}}\) . Let \(\lambda_1, \lambda_2\) and \(\lambda_3\) be the wavelengths of radiation corresponding to the transitions C to \(\mathrm{B}, \mathrm{B}\) to A and C to A , respectively. The correct relation between \(\lambda_1, \lambda_2\) and \(\lambda_3\) is:
- \(\lambda_1^2+\lambda_2^2=\lambda_3^2\)
- \(\frac{1}{\lambda_1}+\frac{1}{\lambda_2}=\frac{1}{\lambda_3}\)
- \(\lambda_1+\lambda_2+\lambda_3=0\)
- \(\lambda_1+\lambda_2=\lambda_3\)
Answer
(D) _1+ _2= _3
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