Hey manda ...

 EP is meant to provide a more thorough grounding in applied physics of any area chosen by the student (such as optics, nanotechnology, microfabrication, mechanical engineering, electrical engineering, control theory, aerodynamics, energy or solid-state physics.

It covers the following vast aspects of technology applications and it leads to vast zone of research as well:

Accelerator physics, Acoustics, Agrophysics, Analog Electronics, Force microscopy and imaging, Ballistics, Biophysics, Communication Physics, Computational physics, Control Theory, Digital Electronics, Econophysics, Fiber Optics, Fluid dynamics, Geophysics, Laser physics, Medical physics, Metrological Physics, Microfluidics, Nanotechnology, Nondestructive testing, Nuclear engineering, Nuclear technology, Optics, Optoelectronics, Photovoltaics, Plasma physics, Quantum electronics, Semiconductor physics and devices, Soil Physics, Solid state physics, Space physics, Spintronics, Superconductors.Vehicle dynamics