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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What gases are used in a He-Ne laser?
π‘ Hint: Think of what the name suggests.
Question 2
Easy
What color light does a He-Ne laser emit?
π‘ Hint: Consider the wavelength mentioned.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What gas primarily excites neon atoms in a He-Ne laser?
- Oxygen
- Helium
- Argon
π‘ Hint: Consider the name of the laser.
Question 2
Is the light emitted by a He-Ne laser coherent?
- True
- False
π‘ Hint: Recall the features of laser light.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a He-Ne laser operates at 632.8 nm, what is the energy of a single photon emitted by this laser? Use the formula E = hc/Ξ».
π‘ Hint: Use the given constants for Planck's constant and speed of light.
Question 2
Explain why population inversion is typically unnatural and how it is achieved in the He-Ne laser.
π‘ Hint: Consider the role of energy input in achieving this state.
Challenge and get performance evaluation