In the He-Ne Laser,the Lasing Transition Goes from the 20

question 38

Multiple Choice

In the He-Ne laser,the lasing transition goes from the 20.66 eV state in Ne to a lower state.The wavelength of the laser photons is 633.0 nm.What is the lower state of the lasing transition?

• A) the He ground state
• B) the Ne ground state
• C) the 20.61 eV excited stated of He
• D) the 18.70 eV excited state of Ne
• E) the 4.660 eV excited state of Ne

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