Question

The amplitudes $E_0$ and $B_0$ of electric and the magnetic component of an electromagnetic wave respectively are related to the velocity $c$ in vacuum as

• A. $E_0{B}_0=\frac{1}{c}$
• B. $E_0=\frac{c}{B_0}$
• C. $B_0=c{E}_0$
• D. $E_0=c{B}_0$
• E. $E_0=c^3{B}_0$

Answer 1

The correct option is D $E_0=c{B}_0$

As we know, in electromagnetic waves, speed or light,
$c=\frac{E_0}{B_0}\Rightarrow E_0=c{B}_0$.