1 / 19

Light Waves and Reflection

Light Waves and Reflection. Science and Technology 3 Ms. Enright. Light is. An electromagnetic wave that is visible to the human eye. Reflection is…. The rebounding of light that occurs when a light ray hits a different medium and ‘bounces back’ to the medium from from which it came.

nadine
Download Presentation

Light Waves and Reflection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Light Waves and Reflection Science and Technology 3 Ms. Enright

  2. Light is... • An electromagnetic wave that is visible to the human eye.

  3. Reflection is… • The rebounding of light that occurs when a light ray hits a different medium and ‘bounces back’ to the medium from from which it came.

  4. Definitions

  5. Laws of Reflection

  6. Types of Reflection

  7. Specular vs. Diffuse Reflection

  8. Definitions

  9. Refraction • What are the 2 transparent media? • Water • Air • In which medium does light travel faster? Why? • Air, because the particles are further apart

  10. Speed of light in different media http://www.newscientist.com/blogs/nstv/2011/10/one-minute-physics-why-light-slows-down-in-glass.html

  11. Concave Lenses • Diverging Lens • Used to treat myopia (near-sightedness)

  12. Convex Lenses • Converging lens • Used to treat hyperopia or farsightedness

  13. Eye Disorders

  14. Hyperopia

  15. Myopia

  16. 2. Some people tend to confuse hyperopia with a vision disorder called presbyopia. a) Which of these eye disorders generally appears when a person is more than 45 years old? • Presbyopia b) Whatcauses presbyopia? • Presbyopiaiscaused by aging of the muscles that support the lens of the eye.

  17. Presbyopia

More Related