An age is called dark, not because the light fails to shine, but because people refuse to see.
                                — James Albert Michener

Learning Objectives

    In this unit, the students are exposed to,
- The wave aspect of light. 
- The proof for law of reflection and refraction. 
- The phenomena like interference, diffraction and polarisation.
- The terms like magnification and resolving power etc .
- The different optical instruments like microscope, telescope etc.