Physics · JEE | Electromagnetic Waves

In an electromagnetic wave, the ratio of the magnitude of the peak electric field \( E_0 \) to the peak magnetic field \( B_0 \) in free space is equal to:

1. A
   \( \frac{1}{c} \)
2. B
   c (speed of light)
3. C
   \( \mu_0 \varepsilon_0 \)
4. D
   \( \sqrt{\mu_0 \varepsilon_0} \)