List of top Physics Questions on Electromagnetic waves asked in NEET (UG)

If $ {\varepsilon}_0 $ and $ {\mu}_0 $ are the electric permittivity and magnetic permeability in a free space, $ \varepsilon $ and $\mu $ are the corresponding quantities in medium, the index and refraction of the medium is

The electric and magnetic field of an electromagnetic wave are

In which of the following, emission of electrons does not take place

Which of the following electromagnetic radiations have the longest wavelength ?