Which phenomenon explains why microwave signals attenuate faster in humid air compared to dry air?

💡 Explanation

When microwaves travel through humid air, molecular absorption by water vapor occurs because water molecules have rotational modes that resonate with microwave frequencies, converting electromagnetic energy into heat, attenuating the signal. Therefore, signal attenuation increases rather than scattering, rotation, or diffraction which require different atmospheric conditions.

• Which consequence results when extremely high velocities approach a black hole's event horizon?
• Which risk increases when continuously throttling a cryogenic rocket engine?
• Which outcome occurs when the hydraulic fluid velocity in an aircraft's actuator reaches values exceeding specific Reynolds number thresholds?
• Which consequence primarily results when polymers soften at high-temperatures?
• Which mechanism causes increased tunneling current across a MOSFET's gate oxide when oxide thickness decreases below 2nm?
• Which outcome results when the intake valve is late closing in an internal combustion engine cycle?