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xlzhsteven
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Light of 300 nm wavelength strikes a metal plate, and photoelectrons are produced moving as fast of 0.002c. What is the work function of the metal?
Modern Physics Photoelectrons is a branch of physics that deals with the behavior and properties of photoelectrons, which are electrons that are emitted from a material when it is exposed to light.
Photoelectrons are produced when photons of light strike a material, causing electrons in the material to be ejected from the surface. This process is known as the photoelectric effect.
Photoelectrons have played a crucial role in the development of modern physics, as they provide evidence for the particle nature of light and the quantization of energy. They also have important applications in technology, such as in solar cells and photoelectric sensors.
Photoelectrons are typically detected and measured using a photoelectric apparatus, which consists of a light source, a metal plate, and a collector. When light is shone on the metal plate, it emits photoelectrons which are then collected and measured by the collector.
The energy of a photon of light is directly proportional to the kinetic energy of the emitted photoelectron. This relationship is described by the equation E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the light.