Rec-11 - REFRACTION WORKSHEET "Triangle" Diagram:...

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REFRACTION WORKSHEET “Triangle” Diagram: On other pages in this set you will find a large triangle that represents a triangular prism. We want to follow the path of a light ray striking one of the surfaces as it passes through the prism and exits one of the other surfaces. Assume that 1.5 in the prism. 1. Draw an incident ray which strikes the surface of the prism, on the side marked by the asterisk, at an angle of incidence of 60°. Use a protractor to do this carefully. Include an arrow on the ray to indicate its direction of travel. (Use a blue pen or pencil if you have one.) The ray should enter the side of the prism indicated with the asterisk. 2. Use Snell’s law to find the path of the ray as it passes into the prism, and then as it exits out one of the other surfaces. Put arrows on the ray as it passes through the other regions as well. You will have to draw a normal line at the surfaces where the light ray meets the surface. Use colored pencil or pen or draw a dashed line for the normal lines; it will then be easier to distinguish them from the rays. 3. The index of refraction actually depends on the wavelength of the light, so the path you have drawn is accurate only for one particular wavelength. Assume that this is blue light. Then the index of refraction for red light will be less. Assume (unrealistically) that
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Rec-11 - REFRACTION WORKSHEET "Triangle" Diagram:...

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