Section outline

  • Modern physics

    • 21. Black body radiation

      The program plots blackbody radiation spectrum for a given temperature. You can compare plots generated for two selected temperatures.

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      22. Radioactive decay

      The program illustrates spontaneous transformation of radioactive nuclide into a different nuclide. You can watch how the number of radioactive nuclei in the sample is changing with time. You can also adjust a half-life of a radionuclide.

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      23. Photoelectric effect

      This programm visualizes the photoelectric effect experiment with photocell circuit. In program, you can adjust a voltage placed across the electrodes of photocell, light intensity, and light frequency (in the visible and ultraviolet range).

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      24. Electron wavefunctions

      Electron wavefunctions (satisfying the Schrodinger equation for the hydrogen atom) depend on the quantum numbers n, l, m. The physical interpretation of a particle wavefunction was first given by Max Born. He proposed that its square modulus can be interpreted as a probability density for finding the particle at a particular location at a particular time. This program plots (for selected quantum numbers n, l, m) the radial part of hydrogen atom, the radial and angular probability distribution function, and the visualization of hydrogen atomic orbitals in two dimensions.

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