[amp_mcq option1=”TRUE” option2=”nan” option3=”nan” option4=”nan” correct=”option1″]
The correct answer is: True.
A phonon is a quantum of an elastic wave in a crystal lattice. It is a quasiparticle that represents the quantum of energy of a sound wave in a solid. Phonons are bosons, which means that they obey Bose-Einstein statistics. This means that they can occupy the same quantum state, and that they can condense into a Bose-Einstein condensate at low temperatures.
Phonons play an important role in the thermal conductivity of solids. They also play a role in the electrical conductivity of semiconductors.
The following is a brief explanation of each option:
- Option A: True. Phonons are quanta of an elastic wave in a crystal lattice.
- Option B: False. Phonons are not waves. They are quasiparticles that represent the quantum of energy of a sound wave in a solid.
I hope this helps! Let me know if you have any other questions.