Physics Simulations

Explore how microwave interference changes when a metal reflector is moved. The receiver detects both a direct and a reflected microwave. As the reflector moves, the path difference changes, producing alternating maxima and minima that demonstrate constructive and destructive interference.

Explore how stopping potential is used to investigate the photoelectric effect. Adjust frequency, work function, reverse potential difference and light intensity to observe how photocurrent changes, and see how Einstein's photoelectric equation links photon energy, work function and maximum kinetic energy.