2- The diagram shows the energy levels of one of the gas atoms in its ground state. The gas wasirradiated with photons of energy ranging from 7 to 9 electron volts and excited the gas atoms,and thus photons may be emitted from the excited atom when it stabilizes again.Find the energy of the emitted photons , explain with diagram (there is more than one spectralline emitted)-2eV-3eV- 10 V-15 eVGround state

An electron can absorb only one photon in linear optics. The energy of the incident photon lies…

Answered: 2- The diagram shows the energy levels…

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3 Spectroscopy Light can be emitted and absorbed by atoms, but only when the energy of the light, E = hf, matches the energy difference of two allowed states of an atom. For the transition m →n, the energy difference is AE = Em - En. Thus, light will be emitted or absorbed only if hf = En-Em- In the Bohr model of hydrogen, the energy of the n-th electron orbit is En -13.6 eV n² (a) Transitions of the form m → 1 make up the Lyman series of spectral lines. Calculate the wavelengths of the first 3 lines in the Lyman series. In what region of the electromagnetic spectrum do these lines appear? (b) Transitions of the form m → 2 make up the Balmer series of spectral lines. Calculate the wavelengths of the first 3 lines in the Balmer series. In what region of the electromagnetic spectrum do these lines appear? (c) Transitions of the form m → 3 make up the Paschen series of spectral lines. Calculate the wavelengths of the first 3 lines in the Paschen series. In what region of the…
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