Answer:
a
The expression for wave number is [tex]k = 10\pi(\sqrt{3}\ a_{x} +a_{y})[/tex]
The expression for the wave number is [tex]B = \frac{2\pi}{wavelength } = \frac{2\pi}{0.1} =20\pi[/tex]
Explanation:
The explanation is shown on the first uploaded image
