Q2. What is Specific Absorption Rate (SAR) used to measure in the context of RF exposure?
A. The temperature change in a material exposed to RF radiation.
B. The absorption coefficient of RF energy in biological tissues.
C. The change in power absorbed by biological tissues exposed to RF radiation.
D. The wavelength of RF waves.
Correct Answer: C. The change in power absorbed by biological tissues exposed to RF radiation.
Explanation:
Specific Absorption Rate (SAR) is a measure of the rate at which RF energy is absorbed. It quantifies the change in power absorbed by the tissues per unit mass and time when exposed to RF radiation, often from devices like mobile phones.
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