Energy levels A, B and C of an atom correspond to increasing values of energy i.e. E_A < E_B < E_C. Let λ_1, λ_2 and λ_3 be the wavelengths of…

Energy levels $\displaystyle \mathrm{A}, \mathrm{B}$ and C of an atom correspond to increasing values of energy i.e. $\displaystyle \mathrm{E}_{\mathrm{A}}<\mathrm{E}_{\mathrm{B}}<\mathrm{E}_{\mathrm{C}}$. Let $\displaystyle \lambda_{1}, \lambda_{2}$ and $\displaystyle \lambda_{3}$ be the wavelengths of radiation corresponding to the transitions C to $\displaystyle \mathrm{B}, \mathrm{B}$ to A and C to A , respectively. The correct relation between $\displaystyle \lambda_{1}, \lambda_{2}$ and $\displaystyle \lambda_{3}$ is :