The electric field E associated with an electromagnetic wave is given by $E = E_0\sin(kx - ωt)$. The speed of the wave is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → $\frac{ω}{k}$ **
Given electromagnetic wave:
$E = E_0 \sin(kx - \omega t)$
General wave equation form:
$E = E_0 \sin(kx - \omega t)$ → wave speed $v = \frac{\omega}{k}$
Final Answer:
$v = \frac{\omega}{k}$