The photoelectric effect will cause spacecraft exposed to sunlight to develop a positive charge. This can be a major problem, as other parts of the spacecraft are in shadow which will result in the spacecraft developing a negative charge from nearby plasmas.OverviewThe photoelectric effect is the emission of from a material caused by such as The. The photons of a light beam have a characteristic energy, called, which is proportional to the frequency of the light. In the photoemission process, when an electron within some material absorbs the energy. In 1839, discovered the related while studying the effect of light on. Though not equivalent to the photoelectric effect, his work on was. These are extremely light-sensitive vacuum tubes with a coated inside the envelope. The photo cathode contains combinations of materials such as cesium, rubidium, and antimony specially selected to provide.
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