lab 2 - Physics 134Lab 2 Geometric Optics Abstract In this...

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Physics 134- Lab 2: Geometric Optics Abstract: In this lab, we experimented with geometric optics. We first tested Snell’s Law to find an index of refraction based on the angle of incidence and the angle of refraction. We also found the focal length of a converging lens by two different means, and then found the focal length of the converging lens combined with the diverging lens. Additionally, we saw that a converging lens can magnify an image while a diverging lens can make it appear smaller. Questions: 1.1) The Law of Reflection is that when a ray reflects off of a surface, the angle of incidence is equal to the angle of reflection. These angles are created by the incident ray, which is the ray coming in toward the surface; the normal line, which is an imaginary line perpendicular to the surface off of which the ray is reflecting; and the reflective ray, which is the ray coming back off of the surface. When we measured the angles off the lasers reflecting in the water tanks, the angle of incidence and angle of reflection were both 56 in one tank and both 36 in the other.
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1.2) The equation for Snell’s Law is n1sinθ1=n2sinθ2 where n is the index of refraction and θ is
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