Light ppt science easy

This document discusses different properties and behaviors of light, including reflection, refraction, and detection methods. It explains that light is a form of energy that allows for vision. Advanced cameras can now detect single photons and measure ultrafast light changes. Concave mirrors are used in reflecting telescopes to view distant objects, while convex mirrors provide wider views for security and vehicles. Reflection occurs when light bounces off a surface, either diffusely from rough surfaces or specularly from smooth surfaces at the same angle. Refraction is the change in light's direction when passing from one medium to another, governed by Snell's law.