In a Helium-Neon Laser the Emissions Occur from Transitions Between

question 3

Multiple Choice

In a helium-neon laser the emissions occur from transitions between two excited states in neon, one being at 20.66 eV above the ground state and the other being 18.70 eV above ground. What is the energy of the photons emitted by this laser?

• A)20.66 eV
• B)1.96 eV
• C)18.70 eV
• D)19.60 eV
• E)39.36 eV

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