"Reflection of Light" Colorful Light PPT Courseware 3

"Reflection of Light" Colorful Light PPT Courseware 3

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"Reflection of Light" Colorful Light PPT Courseware 3

1. Light reflection phenomenon

All the objects we see in our lives enter our eyes because of the reflected light from their surfaces.

Polished metal and well-painted objects look bright and dazzling.

Bricks and stones look dim.

These phenomena are due to the fact that different surfaces reflect light differently.

The reflection phenomenon of light - reflection

reflection of sun

mountain reflection(1)

Mountain reflection(2)

2. The law of reflection of light

The law of reflection:

The reflected ray is in the same plane as the incident ray and normal;

Reflected rays and incident rays are separated on both sides of the normal;

The angle of reflection is equal to the angle of incidence.

3. The light path is reversible when light is reflected

The light emitted from point A reaches point B after being reflected by point O. Place another light source at point B so that the light emitted is directed to a certain point on the mirror surface such as point C. Adjust the direction of light BC so that it coincides with BO and find that it The reflected light coincides with OA, thus indicating that the reflected light path is reversible.

4. Specular reflection and diffuse reflection

reflection of mirror

diffuse reflection

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"Reflection of Light" Light PPT download:

"Reflection of Light" Light PPT Download Part One Content: Introduction to New Lesson Through the previous study, we know that light propagates in a straight line. We see that the sun is shining brightly outside the classroom, but there is no trace of sunshine on the blackboard in the classroom. Do you have a way to put the light outside? Sunlight please go to the blackboard..

"Reflection of Light" Light PPT:

"Reflection of Light" Light PPT Part One: Illuminating the Target Turn on the flashlight switch and let the light illuminate the book on the table from top to bottom. How does light illuminate the book? Draw the path of light on the diagram. Without changing the position of the flashlight, stand the book up. At this time,...

"Reflection and Refraction of Light" PPT:

"Reflection and Refraction of Light" PPT Part One Content: Reflection of Light When light hits the surface of an object, part of the light will be reflected back by the surface of the object. The law of reflection of light reflects that the reflected light, incident light and normal are on the same plane Reflected rays and incident rays are separated...

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