Multiple choice

The magnetic field intensity vector of a plane wave is given by $\bar H (x,y,z,t)$ = 10 sin (50000t + 0.004x + 30)$\widehat a_y$ where $\widehat a_y$denotes the unit vector in y direction. The wave is propagating with a phase velocity

  1. 5 x 104 m/s

    • 3 x 108 m/s
    • 1.25 x 107 m/s
  2. 3 x 108 m/s

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation