Reflection

**﻿Advancememt in Physics @ Dwight Englewood** **Director: Elise Burns** **TA: Sebastian Loh** **﻿**  **Reflection**  __**Luminous and illuminous objects**__  Luminous objects make their own light. Illuminated objects that reflect light to our eyes. If we didn’t have luminous objects, the illuminated objects would not be seen. When the sun disappears, and it starts to become dark, it shows the illuminated objects harder to see and appear black.  __**Line of sight**__  The line of sight is when you want to view an object, you must look at the line of the object. When you look at the line of the object, and you find the line of the object and light will come from that object to your eye and you will be able to see along the line of sight.  __**Ray of light**__ <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">The ray of light is known as an incident ray. If the incident ray is reflected off of a mirror, that is known as the reflected ray. This shows that the object distance= image distance. This relates to the law of reflection because the angle of incidence= the angle of reflection. <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">__**Specular vs diffuse**__ <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">Specular reflection is when a reflection is reflected off of a smooth surface like a mirror. Diffuse reflection is when there is a reflection off of rough surfaces such as clothes or asphalt roadways. For example, and bumpy asphalt surface is better to drive on at night then a specular reflection road that has a lot of reflections off of the smooth surface on the ground. <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">__**Finding an image**__ <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">You can find the image location when observers are viewing the position of the object. When you find the image location, it is the image behind the mirror where all the light diverges from. <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">__**Characteristics of images**__ <span style="background-color: #d0ebfb; color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;"> <span style="color: #ff0044; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">A virtual image is an image where light does not actually reach. A real image is displayed through a curved mirror. When you look in the mirror and you raise your left hand, your right shows up. That is known as a left right reversal. The image is upright and isn’t inverted. To determine where the image is seen, you make a ray diagram. A ray diagram shows the path that light takes in order to view a point on the image of the object. <span style="background-color: #d0ebfb; color: #ff0044; font-family: Verdana,Geneva,sans-serif; font-size: 110%;">**﻿**