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What is the shortest wavelength (highest frequency) that could be produced by a light-emitting diode (LED)?
What is the shortest wavelength (highest frequency) that could be produced by a light-emitting diode (LED)?
The shortest wavelength that could be produced by an LED depends on the composition of the semiconductor material used to make the LED. Some LED materials can produce wavelengths as short as 200 nanometers, which corresponds to a frequency of about 1.5 petahertz.