The angular position of cells remains the same for a sample of a crystal. This property is called___________________?
Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?
The energy band occupied by the valence electrons is called___________________?
Formation of large molecule by joining small molecules is_________________?
A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is____________________?
The ration stress to strain in youngs modulus of the material then tension is__________________?
A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?
A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire ?
A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?
A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
