Ray Optics and Optical Instruments Important Questions for CBSE Class 12 Physics Reflection, Refraction and Dispersion of Light 1.Ray Optics or Geometrical Optics In this optics, the light is considered as a ray which travels in a straight line. It states that for each and every object, there is an image. 2.Reflection Reflection is the phenomenon of changing the path of … [Read more...]