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Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz (100 cm) and 300 GHz (0.1 cm).t indicates that microwaves are small, compared to waves used in typical radio broadcasting, in that they have shorter wavelengths. The boundaries between far infrared, terahertz radiation, microwaves, and ultra-high-frequency radio waves are fairly arbitrary and are used variously between different fields of study.
Now, the heat caused by the non-ionizing spectrum of sunlight is considered harmless. Moreover, the energy emitted by electronic devices is magnitudes lower than that of the sun! Energy is directly proportional to the radiationâs frequency. Ultraviolet light â the kind that has a high potential to cause skin cancer â has a frequency of around 10 to the power of 16, while low intensity microwaves found with cell phones have a radiation of around 10 to the power of 9.