What is lighting and thunderstorms?
admin The phenomenon of Thunderstorm and lightning is not yet cleared. Some experimental observations on this fact can be seen below: 1. It is said that during a thunderstorm different charged…
What do you mean by lightning conductor?
Damages due to lightning flashes are very common. But with the help of a lightning conductor we can save our large buildings on which we have spent lots of money.…
Explain Van De Graff generator?
Van De Graff generator is used to generate high potential differences of near about million volts. Then the generated potential differences are used to speed up the particles like ions…
What are Solids?
Solids are the materials having definite volume and shape. Solids can be described in two different categories. These are discussed below: 1. Crystalline solids 2. Amorphous Solids In solids, the…
Explain the Properties of the Crystalline and Amorphous Solids?
Properties of crystalline solids: 1. These solids have a particular three dimensional geometrical structure. 2. The arrangement order of the ions in crystalline solids is of long order. 3. The…
What is Crystal Lattice?
To get a complete shape of solid, its atoms, molecules or ions must be placed at some particular places or points. A crystal lattice basically tells us about the basic…
What is Unit Cell?
The smallest part of a crystal is called as unit cell. It is formed by combination of atoms and molecules. The whole crystal structure can be formed by the repetition…
What are Crystallographic Systems?
Depending upon the shape of the unit cells, the grouping of the crystals is done in seven systems known as crystallographic systems. Type Lattice Constants Example Cubic a=b=c Ag, Li,…
Explain the three basic types of crystals?
Three basic types of crystals are: 1. Single Crystals 2. Poly Crystals 3. Liquid Crystals 1. Single Crystals: Those crystals in which patterns are regular throughout the whole crystal are…
Explain the Different Energy Bands of Solids?
To study the energy bands of the solids first we have to the study the Bohr’s atomic theory. According to Bohr’s theory the energy in different atoms vary with the…