The de – Broglie waves are termed as probability waves The de-Broglie waves are component wave whose amplitude vary according to the characteristic of the detecting particle. De – Broglie wave are not electromagnetic...
Category - Physics
The thermal conductivity of a material is determined by following methods Lee’s disc method – for bad conductors Radial flow method – for bad conductors Lee’s Disc Method Definition: Lee’s disc...
Take a calorimeter and its outer surface is polished. The calorimeter is fill it ¾th with hot water of about 80°c and suspend in a double walled vessel as shown in (Fig. a). The vessel is filled with water. A thermometer is...
Principle Thermal conductivity of rubber can be determined by radial heat flow method and the quantity of heat flowing per second is determined by using a constant flow calorimeter. Construction and working An empty calorimeter...
Statement Newton’s law of cooling states that the rate of cooling of a body is directly proportional to the temperature difference between the body and the surroundings. The law holds good only for a small difference of...
1. Copper has FCC structure and its lattice parameter is 3.6Å. Find the atomic radius. Given data Lattice parameter of copper (a)=3.6Å Solution: Atomic radius of copper = 1.273 x 10-10m r = 1.273 Å 2. Silver has FCC...
The sum of the moments of all the forces across the areas of all the filaments about the neutral axis, when a beam is bent is called the bending moment. When the beam is in equilibrium position the bending moment will be equal...
When a wire is stretched, the length of the wire will increase. At the same time, the wire will become thinner, that is, there is a decrease in the cross section of the wire. The ratio of change in diameter of the wire to the...
Effect of stress It is known that the action of large constant stress or the repeated number of cycles of stresses acting on a body decreases the elasticity of the body gradually. Taking these into account, the working stress on...
There are three types of modulus based on different kinds of strain. They are Young’s modulus (Y) (corresponding to longitudinal strain) Bulk modulus (K) (corresponding to volume strain) Rigidity modulus (N) (corresponding...
