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Identify which type of polarisation depends on temperature.
  • a)
    Electronic
  • b)
    Ionic
  • c)
    Orientational
  • d)
    Interfacial
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Identify which type of polarisation depends on temperature.a)Electroni...
Answer: c
Explanation: The electronic, ionic and interfacial polarisation depends on the atoms which are independent with respect to temperature. Only the orientational polarisation is dependent on the temperature and is inversely proportional to it.
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Most Upvoted Answer
Identify which type of polarisation depends on temperature.a)Electroni...
Explanation:

Polarization refers to the alignment of the electric dipole moments in a material. It can occur due to various mechanisms, such as electronic polarization, ionic polarization, orientational polarization, and interfacial polarization.

In the case of temperature dependence, the type of polarization that depends on temperature is orientational polarization.

Orientational Polarization:
Orientational polarization occurs in materials with permanent dipole moments that can rotate in response to an external electric field. This type of polarization is commonly observed in polar molecules, such as water molecules.

Effect of Temperature on Orientational Polarization:
The rotation of molecules in a material depends on the thermal energy available. As the temperature increases, the thermal energy also increases, leading to higher molecular motion. This increased molecular motion reduces the alignment and effectiveness of the dipole moments, resulting in a decrease in orientational polarization.

At lower temperatures, the dipole moments tend to align more easily with the external electric field, leading to a higher orientational polarization. However, as the temperature increases, the molecular motion becomes more vigorous, hindering the alignment of the dipole moments. Consequently, the orientational polarization decreases.

Applications of Orientational Polarization:
Orientational polarization is commonly observed in materials like liquid crystals, which are widely used in display technology. The alignment of liquid crystal molecules can be controlled by an electric field, resulting in changes in light transmission and polarization. This property is utilized in liquid crystal displays (LCDs) for various devices, such as televisions, smartphones, and computer monitors.

In conclusion, orientational polarization is the type of polarization that depends on temperature. As the temperature increases, the molecular motion in the material increases, leading to a decrease in orientational polarization. This phenomenon is important in various applications, particularly in liquid crystal displays.
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Identify which type of polarisation depends on temperature.a)Electronicb)Ionicc)Orientationald)InterfacialCorrect answer is option 'C'. Can you explain this answer?
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