How would you account for turbidity observed in liquid crystals?
Answers
Answer:
In a nematic liquid crystal, thermal fluctuations of the orientation of molecules give rise to an intense scattering of light which confers to the system a characteristic turbidity. The resulting absorption coefficient is equal to the total scattering cross-section.
Liquid crystals represent states of matter that are intermediate between the crystalline solid and the amorphous liquid. There has been a considerable growth of interest in these mesomorphic states in recent years, partly because of their important applications in display technology. This review article deals with the physics of the three types of liquid crystals-nematic, cholesteric and smectic-describing their structures, their thermodynamic, optical and mechanical properties and their behaviour under external fields.
Explanation:
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