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Refraction refers to the bending of the transmitted light at the interface between two transparent materials. The angle of refraction depends on the angle of incidence and the relative speeds of the light in the two different media and can be found from the relationship sinθ2 sinθ1 = v2 v1
The Refraction of Light: Snell’s Law. Light may refract into a material where its speed is lower. The angle of refraction is less than the angle of incidence. The ray bends toward the normal. Snell’s Law. ––. Example. Light is refracted into a crown glass slab. θ1 = 30.0o, θ2 = ? n1 = 1.00 and n2 = 1.52. From Table 23.1 (page 844)
We shall try to understand in this Chapter the reflection of light by spherical mirrors and refraction of light and their application in real life situations. 10.1 REFLECTION OF LIGHT. A highly polished surface, such as a mirror, reflects most of the light falling on it.
Light changes direction when crossing a boundary from one medium to another. This is called refraction, and the angle the outgoing ray makes with the normal is called the angle of refraction. Refraction: Snell’s Law
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To better understand the laws of reflection and refraction of light. To experimentally determine the index of refraction of glass using the law of refraction. To study what happens to the transmitted light when it goes from less dense to more dense media and vice versa.
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When light goes from one material into one having a higher index of refraction, it refracts toward the normal line of the boundary between the two materials. If, as the light travels through the new material, the index of refraction continues to increase, the light ray will refract more and more toward the normal line.