Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich electromagnetic radiation consequence occurs when a waveguide width is below resonance?
A)Wave Impedance transformation occurs
B)Evanescent mode power leakage
C)Waveguide characteristic impedance reduces
D)Propagation constant becomes imaginary✓
💡 Explanation
An electromagnetic wave cannot propagate because frequencies below the cutoff result in **Total Internal Reflection** inside guide. Therefore, the propagation constant is imaginary, rather than being real, because there is an exponential decay representing a non-propagating mode.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which consequence results when waveguide impedance discontinuities cause reflections?
- Which outcome occurs when a quantum mechanical system's wave function exhibits spatial confinement?
- Which behavior change emerges when Reynolds number increases within a centrifugal pump?
- Which consequence results from an increased rate constant?
- Which mechanism causes perceived duration changes near black holes?
- Which mechanism diminishes water's surface tension during saponification?
