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Laws of Reflection: Plane (flat) mirrors

Laws of Reflection: Plane (flat) mirrors. From our lab, we learned…. angle of incidence = angle of reflection The incident ray, reflected ray and the normal all lie in the same plane . Light Reflecting off Surfaces. Specular Reflection: Reflection of light off a smooth surface (ex. mirror).

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Laws of Reflection: Plane (flat) mirrors

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  1. Laws of Reflection:Plane (flat) mirrors

  2. From our lab, we learned… • angle of incidence = angle of reflection • The incident ray, reflected ray and the normal all lie in the same plane

  3. Light Reflecting off Surfaces • Specular Reflection: • Reflection of light off a smooth surface (ex. mirror)

  4. Light Reflecting off Surfaces • Specular Reflection: • Reflection of light off a smooth surface (ex. mirror)

  5. Light Reflecting off Surfaces • Diffuse Reflection: • Reflection of light off a rough surface (ex. moving water)

  6. Light Reflecting off Surfaces • Diffuse Reflection: • Reflection of light off a rough surface (ex. moving water)

  7. Virtual Images • An image formed by light coming from an apparent light source • Light is not arriving at or coming from the actual image location

  8. Characteristics of Images in a Plane Mirror • Lateral Inversion: • The orientation of an image in a plane mirror that is backwards and in reverse order

  9. How do we see the image?

  10. Virtual Image • Your brain believes rays are emanating from a position behind the mirror (virtual!)

  11. Reflection Worksheet • Complete the worksheet • Remember that the virtual image must be the same difference from the mirror as the real object

  12. Properties of an Image • Use the acronym SALT

  13. Sample Question

  14. Sample Question

  15. Sample Question • S- same size • A- upright • L- behind mirror • T- virtual

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