Question

The phase constant of a wave with wavelength 2 units is

(a) 6.28

(b) 3.14

(c) 0.5

(d) 2

This question was posed to me in examination.

I'd like to ask this question from Plane Waves in Dielectrics topic in section EM Wave Propagation of Electromagnetic Theory

Answer 1

The correct answer is (b) 3.14

To explain: The phase constant is given by β = 2π/λ. On substituting λ = 2 units, we get β = 2π/2 = π = 3.14 units.