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Physics

Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 1 Quiz: Laser Physics, Population Inversion and the Helium-Neon Laser

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1.
The density of an ideal gas at temperature T and pressure P is rho. If the pressure is tripled and the absolute temperature is halved, the new density becomes:
3 rho
0.67 rho
1.5 rho
6 rho (since rho is proportional to P / T)