Task 40596.
A ray of natural light passes sequentially through a polarizer and an analyzer, the polarization planes of which are 45 °. Light intensity at the output of the analyzer I2. Then a vessel with a sugar solution is placed between the polarizer and the analyzer. The light intensity at the exit from the analyzer becomes I2. Then a vessel with a sugar solution is placed between the polarizer and the analyzer. The light intensity at the exit from the analyzer becomes equal to I2 ´. Find the intensity ratio I2 / I2 ´. The length of the vessel is 10 cm, the sugar concentration is C = 0.4 g / cm3, and the specific rotation is k = 0.65 deg * m ^ 2 / kg.
Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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