Multiple Choice
In a ruby laser, an electron jumps from a higher energy level to a lower one. If the energy difference between the two levels is 1.8 eV, what is the wavelength of the emitted photon?
A) 350 nm
B) 470 nm
C) 650 nm
D) 690 nm
E) 960 nm
Correct Answer:
Verified
Correct Answer:
Verified
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