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how to calculate the changing speed of light using snells law. Snells law gives the degree of refraction and relation between the angle of incidence the angle of refraction and refractive indices of a given pair of media. Use the protractor to measure an angle of 90 to the entry surface and draw the normal.
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From sympy import vartheta_1 theta_2 n_1 n_2 snell sintheta_1 n_1 - sintheta_2 n_2 for v in theta_1theta_2n_1n_2. The refraction index n of a transparent medium is defined as the ratio of speed of light in vacuum to the speed of light in that medium. Angle of incidence thi Angle of refraction thr Critical angle none Total internal reflection.
So lets figure out the refraction index first.
Well thats just the ratio of the speed of light in the vacuum to the speed of light in the vacuum. Now use the protractor to measure th 1 and th 2. Angles of refraction can be calculated using known speeds or wavelengths. Calculation of Refraction Index and Angle of Incidence is made easier using this Snells Law Calculator.
