7 - Practice Problems
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Practice Questions
Test your understanding with targeted questions
What is population inversion in the context of lasers?
💡 Hint: Think of the state of atoms in a laser medium.
What type of laser uses carbon dioxide as a gain medium?
💡 Hint: It is widely used for cutting and welding applications.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What effect does population inversion have on lasing?
💡 Hint: Think about the conditions necessary for a laser to operate.
Is Brewster's angle relevant for maximizing laser transmission?
💡 Hint: Consider the purpose of Brewster’s angle in optics.
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Challenge Problems
Push your limits with advanced challenges
Consider a laser that operates with a population inversion of 1000 atoms. If 10% are flipped to the excited state, how many atoms remain in the ground state?
💡 Hint: Calculate based on the total number of atoms.
A laser emits 5 × 10^6 photons per second, each with an energy of 1.5 eV. What is the total power output?
💡 Hint: Convert eV to watts if needed.
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