+Optical activity is the phenomenon where a substance rotates the plane of [polarized light](/wiki/polarization). This intriguing property arises from the inherent [chirality](/wiki/chirality) of its molecules, acting like tiny spirals in the path of light.
+## See also
+- [Chirality](/wiki/chirality)
+- [Polarization](/wiki/polarization)
+- [Stereochemistry](/wiki/stereochemistry)
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