At the end of this lesson you should be able to:

• Distinguish between mirror reflection and diffuse reflection.
• Draw a ray diagram and locate the position of the image produced placed a specified distance from a plane mirror. State the characteristics of the image.
• Distinguish between convex and concave mirrors. Draw rays parallel to the principal axis and locate the positions of the principal focal point of each kind of mirror.
• Draw a ray diagram and locate the position of the image of an object placed a specified distance from a concave or convex mirror. State the characteristics of the image.
• Use the mirror equations and the sign conventions to determine the position, magnification and size of the image produced by an object placed a specified distance from a spherical mirror.
• State Snell's Law and use this law to predict the path the path of a light ray as it travels from medium into another. Explain what is meant by the index of refraction of a medium.
• Explain what is meant by total internal refraction. Use Snell's law to determine the critical angle as light travels from a medium of higher index of refraction into a medium of lower index of refraction.
• Distinguish between convex and concave lenses. Draw rays parallel to the principal axis and locate the positions of the principal focal point of each kind of thin lens.
• Draw a ray diagram and locate the position of the image of an object placed a specified distance from each type of thin lens. State the characteristics of the image.
• Use the thin lens equation and the sign conventions to determine the position, magnification and size of the image produced by an object placed a specified distance from a thin lens.