Which phenomenon reduces signal strength when an electromagnetic wave encounters conductive obstacles in its fresnel zone?

💡 Explanation

When an EM wave encounters obstacles in its Fresnel zone, diffraction occurs because the wave bends around edges, creating destructive interference that weakens the direct signal. Therefore diffraction losses reduce signal strength, rather than absorption, reflection, or refraction alone that require different interaction mechanisms.

• Which outcome impairs data transmission through single-mode fiber?
• Which outcome occurs when a pervoskite crystal experiences oxygen vacancy formation?
• Which influence explains transistor current leakage when gate bias is off?
• Which outcome increases when intercooling fails within a multistage air compressor?
• Which effect limits quantum key distribution (QKD) networks using entangled photon pairs across long fiber optic cables?
• Which outcome occurs when a pump impeller experiences cavitation?