Physics, 19.01.2021 21:30 deaishaajennings123
The laser pointer emits light because electrons in the material are excited (by a battery) from their ground state to an upper excited state. When the electrons return to the ground state, they lose the excess energy in the form of 538-nm photons. What is the energy gap between the ground state and excited state in the laser material
Answers: 2
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If element x has 99 protons how many electrons does it have
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The laser pointer emits light because electrons in the material are excited (by a battery) from thei...
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