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Physics presentation

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  • 1. Curved Mirrors By:Je’Marcus McDaniel & LaDarius Kelley
  • 2. Objectives • • • Distinguish between different types of mirrors. Describe a simple ray diagram. Distinguish between real and virtual images.
  • 3. Introduction slide In this powerpoint we will be explaining different types of mirrors, and attempting to teach you how to distinguish between those types. We will also explain the differences between real and virtual images and also describe ray diagrams.
  • 4. Distinguishment of Curved Mirrors There are two types of curved mirrors which both have an effect on the way we perceive the images being reflected.
  • 5. Concave Mirrors • Concave mirrors- They reflect the image; this image may be real or virtual. Real images are inverted and virtual images are upright. Concave images are used to magnify.
  • 6. Convex Mirrors Convex mirrors- They reflect the image in a way that causes us to perceive the image as being smaller and upright. The image reflected is a virtual image.
  • 7. Real images Real images are images where the light actually converges. Real images are produced when objects are placed outside the focal length of a converging mirror.
  • 8. Virtual images Virtual images are locations where light just appears to have converged. Virtual images are formed by diverging lens or by placing an object inside the focal length of a converging lens.
  • 9. Ray Diagrams • A Ray Diagram is a diagram that traces the path that light takes in order for a person to view a point on the image of an object.
  • 10. Differentiating Between Types of Ray Diagrams. • Rules for concave ray diagrams- Any • incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point upon reflection. Any incident ray passing through the focal point on the way to the mirror will travel parallel to the principal axis upon reflection.
  • 11. Continued….. • • Rules for convex ray diagrams- any incident ray traveling parallel to the principal axis on the way to a convex mirror will reflect in such a manner that its extension will pass through the focal point. Any incident ray traveling towards a convex mirror such that it extentions passes through the focal point will reflect and travel parallel to the principal axis.
  • 12. Any Questions???
  • 13. Bibliography Henderson, T. (n.d.). Ray Diagrams - Concave Mirrors. Ray Diagrams - Concave Mirrors. Retrieved October 28, 2013, from http://www.physicsclassroom.com/class/refln/u13l3d.cfm Hewitt, P. G. (2002). Mirrors. Conceptual physics: the high school physics program (pp. 580-581). Needham, Mass.: Prentice Hall. "Images, real and virtual." Michagan State University . N.p., n.d. Web. 25 Oct. 2013. <http://www.pa.msu.edu/courses/2000fall/PHY232/lectur es/lenses/images.htmlFind a website by URL or keyword...>..

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