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1. Optical activity refers to the ability of certain materials to rotate the plane of polarization of polarized light passing through them. This was first observed experimentally in quartz by Arago in 1811. 2. There are two types of optically active materials - dextrorotatory materials that rotate the plane clockwise, and levorotatory materials that rotate the plane counterclockwise. 3. The angle of rotation (θ) produced by an optically active material is directly proportional to the length (l) of the m
- Author
- wart
- Language
- EN