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← ScienceWhich effect arises when millimeter wave signals propagate through dense foliage?
A)Constructive interference amplifying signal
B)Wavelength compression increasing resolution
C)Dielectric absorption attenuating signal strength✓
D)Frequency shifting due to Doppler effect
💡 Explanation
When millimeter waves pass through foliage, dielectric absorption occurs because water molecules and organic matter absorb electromagnetic energy, causing signal attenuation. Therefore decreased signal strength results, rather than interference, compression, or shifting, which related to wave superposition, wavelength changes or relative motion.
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