The course is designed to address most properties and behavior of general waves including electromagnetic waves.  It focuses on light and its properties such as reflection and refraction of light, image formation by mirrors (plane and spherical), lenses and optical instruments. Electromagnetic spectrum, properties, properties of waves and stationary waves. Thermionic emission, cathode rays in electric and magnetic fields, C.R.O and its use. X-rays and health applications. Characteristics of radioactivity, detection, nuclear process, hazards and safety applications of radioactive isotopes.