9.2 Reflection and Mirrors PowerPoint Presentation, PPT - DocSlides

9.2 Reflection and Mirrors PowerPoint Presentation, PPT - DocSlides

2018-02-16 51K 51 0 0

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Essential Questions:. What Are the Kinds of Reflections?. What Types of Images Do Mirrors Produce?. What Are the Kinds of Reflection?. Light obeys the law of reflection.. The angle of the reflection equals the angle of incidence.. ID: 631873

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Slide1

9.2Reflection and Mirrors

Essential Questions:What Are the Kinds of Reflections?What Types of Images Do Mirrors Produce?

Slide2

What Are the Kinds of Reflection?

Light obeys the law of reflection.The angle of the reflection equals the angle of incidence.Snell’s Law

Slide3

What Are the Kinds of Reflection?

Regular reflection occurs when parallel rays of light hit a smooth surface. All of the light reflects at the same angle.This produces an image, which is a copy of an object formed by reflected or refracted rays of light.

Slide4

What Are the Kinds of Reflection?

Diffuse reflection occurs when parallel rays of light hit an uneven surface.Even the flat surface of a sheet of paper has enough bumps on a small scale to diffuse light.

Slide5

What Types of Images Do Mirrors Produce?

A plane mirror is usually a flat piece of glass with a silver colored coating on one side.This creates a virtual image, which is an image that does not exist, but forms where light seems to come from.

A plane mirror produces a virtual image that is upright and the same size as the object.

Slide6

What Types of Images Do Mirrors Produce?

Concave mirrors have a reflective surface that curves inward that can produce a virtual or real image.A real image forms when light rays actually meet.

Slide7

Concave Mirrors

Notice that the incoming light rays are parallel to the optical axis, an imaginary line that divided a mirror in half.The focal point is that point at which reflected parallel light rays meet.

Slide8

Concave Mirrors

Real and Virtual Images

The figures show how a concave mirror can produce both real and virtual images.

Slide9

Convex Mirrors

A convex mirror is a mirror with a surface that curves outward. This produces a virtual image that is always smaller than the object.


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