1. Optical activity is measured using a polarized source and polarimeter.2. Optical activity or rotation should not be confused with circularly polarized light.3. On heating the reaction to 0 �C the optical activity is lost. 4. By studying the changes in optical activity , researchers may better understand cellular processes. 5. This effect is used in polarimetry to measure the optical activity of a sample. 6. Spatial dispersion contributes relatively small perturbations to optics, giving weak effects such as optical activity . 7. More developments, including important contributions to the development of practical Raman optical activity University of Glasgow. 8. Optical activity in transition metal ion complexes have been attributed to configurational, conformational and the vicinal effects.9. The rotation of the crystal planes can be right or left-handed, again producing opposite optical activities . 10. For example, a ruby from Burma will have definite internal and optical activity variance from a Thai ruby.
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