1. By: Derek Anderson & Alex Walker
Light and Reflection
By: Derek Anderson & Alex Walker

2. Characteristics of Light
Light is made up of electromagnetic waves
Speed of 299,700,000 meters per second or roughly 300,000,000 m/s

3. Electromagnetic Waves
Electromagnetic Waves- consist of oscillating magnetic and oscillating electric fields
Types of electromagnetic waves vary depending on frequency and wavelength

4. Types of Electromagnetic Waves

5. Wave Speed Equation
c = f x h Speed of light = frequency x wavelength This equation is used to determine what the frequency or wavelength of a wave is when one or the other is absent.

6. Practice Problem
The brightest light detected from a star has a frequency of about 3 x 10 Hz. What is the wavelength of this light? 9

7. Reflection
Diffuse reflection- light reflected from a rough, textured surface reflects in many different directions
Specular reflection- light reflected from a smooth, shiny surface reflects in only one direction

8. Reflection (cont’d)
Angle of incidence- the angle between a ray that strikes a surface and the line perpendicular to that surface
Angle of reflection- the angle formed by the line perpendicular and the direction in which a reflected ray moves

9. Concave & Convex Spherical Mirrors
Concave spherical mirrors- a mirror whose reflecting surface is a segment of the inside of a sphere
Convex spherical mirrors- a mirror whose reflecting surface is an outward-curved segment of a sphere

10. Color Spectrums Additive primary colors- red, green, blue
Subtractive primary colors- cyan, yellow, magenta