On the basis of the type of chemical bonds, solids may be classified into Ionic crystals, valence crystals, metal and vander wall crystals Ionic crystals Ionic and valence crystals Ionic crystal, valence crystals and metals TRUE ANSWER : ? YOUR ANSWER : ?
As the viscosity of a liquid increases, the relaxation time Remains constant First decreases then increases Decreases Increases TRUE ANSWER : ? YOUR ANSWER : ?
In a metal, the valence electrons Are shared only between neighbouring atoms Either B or C Are not shared Are shared by all atoms TRUE ANSWER : ? YOUR ANSWER : ?
In van der walls crystals, there exists a high degree of stability of the outer electron shell. False True TRUE ANSWER : ? YOUR ANSWER : ?
The phenomenon of dielectric hysteresis occurs with DC None of these Both AC and DC AC TRUE ANSWER : ? YOUR ANSWER : ?
For making a capacitor it is better to have a dielectric having Permittivity same as that of air High permittivity Permittivity which is neither high nor low Low permittivity TRUE ANSWER : ? YOUR ANSWER : ?
The most important set of specifications of transformer oil include dielectric strength and viscosity flash point and viscosity dielectric strength and flash point viscosity and flash point TRUE ANSWER : ? YOUR ANSWER : ?
The fact that domains exhibits spontaneous magnetisation is Boltzmann’s statistics Curie-Weiss law Second hypothesis is of Weiss First hypothesis is of Curie TRUE ANSWER : ? YOUR ANSWER : ?
The merger of hole and free electron is called Recombination Covalent bonding Thermal energy Free electrons TRUE ANSWER : ? YOUR ANSWER : ?