Which outcome results when an electron scatters inelastically off a crystal lattice?

💡 Explanation

Phonon emission reduces electron velocity via electron-phonon interaction. The electron loses energy to lattice vibrations because the inelastic collision transfers energy, therefore, phonons are emitted, rather than energy gained, in elastic scattering the kinetic energy would stay constant.

• Which consequence results when light passes immense gravitational fields?
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