Z5109208 HAIMEI ZHAO n water sin\u03b11n air sin\u03b12 of Snells law the refractive

Z5109208 haimei zhao n water sinα1n air sinα2 of

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Z5109208 HAIMEI ZHAO n water sinα1=n air sinα2 of Snell’s law, the refractive index of water can be obtained. 4. First of all, according to n water sinα1=n air sinα2 given by Snell’s law, we know that the product of the refractive index of the water and the angle of refraction is equal to the product of the refractive index of air and the angle of incidence. Based on this conclusion, we can infer that because the refractive index of water is diferent from the refractive index of air, the chopstick look like bend in the water. What’ more, because the density of water is not the same as the density of air, the refractive index will be diferent, causing the chopstick to appear bend in the water. In the following diagram, S is the actual position of the chopstick, and S’ is the virtual image of the chopstick. It is obvious that the position of the virtual image is higher than the actual position, so the chopstick appear to be bend. Conclusion In this experiment I explained why the object appears to be curved in the water and studied the relationship between the angle of incidence and the angle of refraction. What’s more, using Snell’s law to help me find the refractive index of water, although there are errors in the experimental results, I proposed a way to improve the accuracy of the experimental results.
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  • Angle of Incidence, Snell's Law, refractive index, Total internal reflection, HAIMEI ZHAO

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