Which risk increases when a waveguide's dimensions approach λ/2 for the propagating wave?

💡 Explanation

Evanescent wave energy increases due to the cutoff frequency approaching the signal frequency, because the waveguide can no longer support propagation. Therefore, increased evanescent energy occurs, rather than dielectric breakdown, since power isn't necessarily high.

• Which consequence occurs when nuclear fuel, specifically enriched uranium isotopes, nears complete consumption in a reactor?
• Which outcome occurs when imperfections induce phase shifts?
• Which error type increases when repeatedly measuring entangled photons?
• Which outcome occurs when a laser experiences mode competition?
• Which risk during a high-speed elevator cable snap increases, leveraging mechanicomechanical equivalence transformations?
• Which outcome reduces catalytic efficiency when reactant concentration saturates enzymatic active sites?