Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome results when a waveguide's dimensions approach zero?
A)Evanescent wave propagation is dominant✓
B)Higher order TE modes are favored
C)Radiative losses diminish significantly
D)Group velocity approaches speed of light
💡 Explanation
Evanescent wave propagation becomes dominant because below the cutoff frequency, the waveguide cannot support propagating modes therefore the electromagnetic field decays exponentially. It's evanescent propagation rather than radiative, because very thin dimension constrain modes.
🏆 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 bonding outcome is disrupted by deuterium substitution during kinetic analysis?
- Which consequence results when carbon nanotubes experience oxidation?
- Which mechanism causes a reduction in efficiency within microfluidic devices, where surface area is high?
- Which transport mechanism increases when quantum dots are closely packed?
- Which outcome reduces efficiency as heat enters Brayton cycle?
- Which consequence results when electron degeneracy pressure drops in orbitals?
