UNIT 08 - Optics EXPECTATIONS -- Before we start this unit you should: realize that light has both wave-like and particle-like properties the speed of light in a vacuum is 3.0 x 108 m/s the speed of light decreases as light travels through a denser medium LEARNING TARGETS: → I will be able to demonstrate understanding that all in the Universe does at least one of the following: emits light reflects light absorbs light refracts light → I will be able to utilize the relationship between the speed of light in one medium compared to the speed of light in a neighboring medium to calculate the index of refraction of that medium: c/v = n (where c = the speed of light in the first medium, v is the speed of light in the neighboring medium and n is the index of refraction) → I will be able to utilize Snell's Law to analyze refraction using the following formula: sinθ2/sinθ2 = n1/n2 = v2/11 where v1 and θ1 are the velocity and angle of the incident light ray and v2 and θ2 are the velocity and angle of the refracted light ray (NOTE: This is NOT the precise form of Snell's Law but it is a variant that you need to be very comfortable with) → I will be able to utilize Snell's Law to calculate the critical angle for a light ray moving between two media (if it exists!) → I will be able to demonstrate understanding of the Law of Reflection by applying principles of retroreflection in our everyday life → I will be able to trace light rays moving into, and reflecting out from a convex mirror → I will be able to trace light rays moving into, through, and out from a concave mirror → I will be able to apply the mirror equation (1/o + 1/i = 1/f) to various scenarios →I will be able to trace light rays moving into, and reflecting out from a concave mirror → I will be able to trace light rays moving into, through, and out from a concave lens PHENOMENA: ♥ Why are the owl's eyes red in Blade Runner? There Once Was a Lady Named BRIGHT Who Traveled FAR FASTER than Light She Set Out One Day (In a relative way) And Came back the PREVIOUS night!