The velocity of all electromagnetic radiation is ………..

What is electromagnetic radiation ?

Explain electromagnetic radiations.

The velocity of electromagnetic radiation in a medium of permittivity epsilon_0 and permeability mu_0 is given by:

The velocity of electromagnetic radiation in a medium of permittivity epsilon_(0) and permeability mu_(0) is given by:

What is electromagnetic radiation?

Which is not electromagnetic radiation ?

The wavelength of an electromagnetic radiation is lamda . What is the energy of a photon of this radiation?

Which is not electromagnetic radiation?