# Hydrogen spectral series

From the above, [A] is the spectral series of hydrogen, on a logarithmic scale, and [B] is a schematic diagram of the energy levels of a hydrogen atom, where $$\lambda_1$$, $$\lambda_2$$ and $$\lambda_3$$ are the wavelengths of the electromagnetic waves released when the electron transition from $$n=3$$ to $$n=2,$$ or from $$n=2$$ to $$n=1,$$ or from $$n=3$$ to $$n=1,$$ occurs, respectively, according to the Bohr's atomic model. Which of the following statements is correct?

a) The wavelength $$\lambda_1$$ in [B] belongs to the visible light range in [A].

b) The wavelength $$\lambda_3$$ in [B] belongs to the Paschen series in [A].

c) The energy of photon with the wavelength of $$\lambda_1$$ in [B] is larger than the energy of photon with the wavelength of $$\lambda_2$$ in [B]

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