Review of Geometric Optics

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• 1.The ray approximation: A wave moving through a medium travels in a straight line in the direction of its rays, which are perpendicular to the wave front. • The law of reflection: The angle of reflection equals the angle of incidence. • The Snell’s law of refraction: n 1 *sin q 1 = n 2 * sin q 2 • Dispersion: The index of refraction varies with the wavelength of the light passing through the material. • Total Internal Reflection: sin q c =n 2 /n 1 , q 2 = 90 ( for n 1 >n 2 )
Images are classified as real or virtual. A real image is formed when light rays pass through and diverge from the image point. A virtual image is formed when the light rays do not pass through the image point but appear to diverge from that point.
Page 1: Review of Geometric Optics 1.The ra
Page 5 and 6: Images formed by Spherical Mirrors
Page 15 and 16: Ray Diagrams for Mirrors Special ra
Page 17 and 18: Ray Diagrams for Concave Mirrors Ra
Page 19 and 20: Images formed by Refraction n = sin
Page 22 and 23: Flat Refracting Surfaces • The im
Page 24 and 25: Thin Lenses 1 p 1 + n q 1 = n −1
Page 26 and 27: Thin Lenses 1 p + 1 q = ( n 1 1 −
Page 29 and 30: Ray Diagrams for Thin Converging
Page 31 and 32: Homework assignment #2 • Chapter

Review of Geometric Optics

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