In: Physics
1.Derive the Klein-Gordan equation and apply it to a particle in the coulombian field. Show that the Klein-Gordan equation will be valid only for the spinless particles.
2. Obtain Klein-Gordan equation for a charged particle moving in an electromagnetic field. Show that this equation reduces to the Schroedinger equation of motion for
the particle in an electromagnetic field in the non-relativistic limit.