Einstein used the photoelectric effect to prove that light has what?

Einstein used the photoelectric effect to show that light can behave both as a particle and as a wave.

Answered by AndyBryer | 2024-06-10

Albert Einstein used the photoelectric effect to prove that light has quantized energies called photons. He argued that the energy of photons is determined by their frequency, according to Planck's formula E = hv, and that electrons are ejected when they are hit by photons with sufficient energy. Einstein also explained that the number of ejected electrons increases with increasing brightness, as it corresponds to the number of photons striking the surface.

Answered by EmilyJeanStone | 2024-06-18

Albert Einstein used the photoelectric effect to show that light has a dual nature, acting as both a particle and a wave. He explained that light consists of photons with energy proportional to their frequency. This pivotal discovery changed the understanding of light and contributed significantly to quantum physics.
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Answered by AndyBryer | 2024-10-02