Physics · PYQ NEET UG 2022

When light propagates through a material medium of relative permittivity \( \in_r \) and relative permeability \( \mu_r \), the velocity of light, \( \nu \) is given by: (\( c \) – velocity of light in vacuum)

1. A
   \( \nu = \sqrt{\frac{\in_r}{\mu_r}} \)
2. B
   \( \nu = \frac{c}{\sqrt{\in_r \mu_r}} \)
3. C
   \( \nu = c \)
4. D
   \( \nu = \frac{\mu_r}{\in_r} \)