Glassware

Glass is a transparent solid substance. It is non-crystalline amorphous in nature and is widely used in various fields like laboratories, as decorative and household products & for technological usage.

Scientifically, every solid with non-crystalline structure which  exhibits a glass transition when heated towards the liquid state is called Glass.

Glassware

Properties of Glass:

Polycrystalline materials do not transmit visible light but glass do and that’s the reason it is used in various types of glass productions. Another important feature of glass is that it reflects or scatters light, i.e. the process of diffuse reflection.

Glass transmit, reflect and refract light. These qualities of glass can be enhanced by cutting and polishing. Glass is widely used in optical lenses, prisms, fine glassware. Silicate glasses, due to their property of optical transparency, are used as window panes.

Glassware used in Kitchen:

The glassware used in kitchen is generally made of borosil or pyrex glass. The reason these glasses are used in kitchen is that it does not crack on heating or cooling because of its low coefficient of expansion. These kind of glassware is generally very thin and hence, inner and outer surfaces expand equally.

Glassware used in Labs:

Glassware equipments used for scientific equipment purposes like in chemistry and biology laboratories is called Lab Glasswares. Borosilicate glass or soda lime glass are primarily used for such purposes.

Borosilicate glasses mainly constitutes silica and boron oxide which makes this compound dimensionally more stable. Sodium borosilicate glass or Pyrex is thus used for chemical glassware, cooking glass, car head lamps, etc.

Lead-oxide glass has high refractive index, which enhances the quality of look of a glassware. The reason why it has a high refractive index is because it has high density and thus high electron density. It also has a high elasticity which helps to make “rings” in the glassware.

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Practise This Question

A charged particle of mass 1.0 g is suspended through a silk thread of length 40 cm in a horizontal electric field of intensity 4.0×104NC1 as shown in the figure. If the particle stays in equilibrium at a distance of 24 cm from the wall, find the net charge on the particle?