Specific Absorption Rate (SAR) is a measure of the rate at which energy is absorbed by the body when exposed to a radio frequency (RF) electromagnetic field; although, it can also refer to absorption of other forms of energy by tissue, including ultrasound. SAR provides a straightforward means for measuring the RF exposure characteristics of cell phones to ensure that they are within the safety guidelines set by the FCC.
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Radiation is a process wherein energy travels in wave patterns or high-speed particles. The level at which radiation brings out its untoward effects is highly unpredictable. Even the smallest amount of radiation can cause great danger to one’s health without even noticing it.
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