Exercises for next section;
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4.2.1 The figures show the "born" display at two different times of a traveling wave moving to the right. The clock measures time in units of 10^(-14) s and the lattice constant is 2 Angstroms.
A: What is the wave vector of this wave?
B: What is its phase velocity?
C: What is its angular frequency?
D: Find an alternative pair of answers to B and C.