Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when dopants disrupt silicon crystal periodicity?
A)Reduced average phonon mean free path✓
B)Increased intrinsic carrier concentration
C)Enhanced electron-phonon coupling strength
D)Decreased minority carrier lifetime only
💡 Explanation
Dopants introduce scattering centers, causing shorter paths for phonons, which limits thermal conductivity via phonon transport. Phonon scattering increases because of the missing periodicity, rather than decreased carrier lifetime; therefore, option A, rather than others.
🏆 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 thermal stress fractures catalytic converters?
- Which consequence results when electrons fail to perfectly shield the nucleus in heavy atoms impacting electron capture?
- Which risk increases when pulsed laser fusion ignites deuterium-tritium fuel?
- Which risk increases when increasing grain size within ferromagnetic metals?
- Which outcome occurs when a high-density asteroid warps spacetime?
- Which outcome typically arises when rapid overvoltage stresses a ceramic capacitor?
