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← ScienceWhich mechanism causes increased electrical resistance in a metal subjected to intense radiation, regarding molecular structure?
A)Increased grain boundary electron scattering✓
B)Enhanced plasmon resonance frequency
C)Reduced electron-phonon interactions
D)Suppressed impurity ionization energy shifting
💡 Explanation
When a metal is subjected to radiation damage, the predominant scattering mechanism arises because of increased imperfections which leads to an effective increase in grain boundaries by increased phonon scattering due to changes in the lattice structure. Therefore, the grain boundary scattering is increased, limiting conductive channels rather than changes to bulk properties.
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