Light reflection and Refration
Description: A ray diagram visually represents light paths using straight lines, showing how rays interact with optical elements like lenses or mirrors.
Description: Concave mirrors converge light, forming real or virtual images; convex mirrors diverge light, forming virtual images. Cartesian sign convention dictates positive/negative directions for distances.
Description: The human eye captures light; the iris controls light entry, and the retina converts light into neural signals.
Description: Eye defects like myopia and hyperopia impair vision. Internal reflection involves light bouncing within the eye, affecting clarity.
