# ICP Light Notes 4/22/13 & 4/23/13. Warmup 1)What is the lowest energy part of the electromagnetic spectrum? 2)What type of electromagnetic radiation is.

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ICP Light Notes 4/22/13 & 4/23/13

Warmup 1)What is the lowest energy part of the electromagnetic spectrum? 2)What type of electromagnetic radiation is slightly higher energy than visible light? 3)What type of electromagnetic radiation is slightly lower energy than visible light?

Agenda Behavior of Light ppt Notes Mirrors ppt Notes Optical Illusions Check Electromagnetic Spectrum Worksheet (Finish for homework) All about color P565 (1-5)

Warmup 1)State the law of reflection. 2)What is it called when light waves bend when passing from one medium to another? 3)In which type of mirror is it possible to see yourself upside down?

Color

λ = 750nm f = 4.29 x 10 14 Hz λ = 450nm f = 7.5 x 10 14 Hz Visible Light

Primary Colors All colors can be made from these 3: These are the primary colors for light because you can make more different colors using these 3 than if yellow is switch for green. (pg 426) Light – Mixing colors by addition (pg. 429) Paint – Mixing colors by subtraction

Page 565 (1-5) 1)List three examples of the diffuse reflection of light. 2)Describe the law of reflection in your own words. 3)Draw a ray diagram that represents a light reflecting off of a flat surface to illustrate the law of reflection. 4)Discuss how reflection from objects that appear blue differs from objects that appear yellow. 5)Explain why a plant may look green in sunlight but black under red light.

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