Question

what is mean by mesomorphic state ?

Answer 1

Mesomorphic state of matter:-

1. Mesomorphic state of matter is a state of matter intermediate between liquid and solid.

2. It occurs with the solids having greater tendency to an ordered arrangement.

3. It has certain properties of solids like double refraction of light or interference pattern in polarised light.

4. It also has some properties of liquid, like surface tension, flow and viscosity.

5. Composed of molecules containing a chiral center which produces intermolecular forces that favour alignment between molecules at a slight angle to one another.

6. The structure can be visualized as a stack of very thin 2-D nematic-like layers with the director in each layer twisted with respect to those above and below forming a continuous helical pattern about the layer normal.

7. They organize in layers with no positional ordering within layers, but a director axis which varies with layers.

8. The variation of the director axis tends to be periodic in nature.

9. The period of this variation (the distance over which a full rotation of 360° is completed) is known as the pitch, p. This pitch determines the wavelength of light which is reflected.

.................................................
ok friends
please mark me in brainly