Light and Atoms

Light is a wave. But light also comes in small packets of energy. And an atom can have only certain amounts of energy. These two ideas changed physics. In this chapter you follow the experiments behind them. First, light that knocks electrons out of a metal. Then, why hydrogen gives out only a few colours. Every calculation is also done in Python.

Part of Physics · High School (11–12) (chapter 25)

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Modern Physics: Light, Atoms, and Quanta

Light is a wave. But light is also a stream of tiny packets of energy. How do we know? In this course we follow the experiments that surprised physicists. First the photoelectric effect and Einstein's equation. Then Bohr's model of the hydrogen atom, and the coloured lines in its spectrum. Every calculation is also done in Python. For Class 12.

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More onModern Physics › Dual Nature of Radiation and Matter Modern Physics › Atoms and Atomic Spectra