Home » Author Archives: admin (page 3)

Author Archives: admin

Schrodinger time dependent wave equation derivation

Schrodinger time independent wave equation derivation Schrodinger time dependent wave equation derivation Consider a particle of mass “m” with velocity “v” and under the influence of potential energy (P.E) which is represented by V(r) .The total energy of the particle is the sum of potential energy (P.E) and kinetic energy (K.E) which is given by:       This is ...

Read More »

Schrodinger time independent wave equation derivation

time independent schrodinger wave equation

Schrodinger time dependent wave equation What is schrodinger wave equation? In classical mechanics the motion of a body is given by Newton’s second law of motion.But elementary particles like electron,protons and photons possess wave properties as well,therefore another equation instead of Newton’s second law equation ( F=ma) is required for describing their motion.The new equation must take into account wave ...

Read More »

What is difference between electromagnetic waves and matter waves?

Difference between electromagnetic waves and matter waves in tabular form Electromagnetic waves     Matter waves These waves have electric and magnetic fields associated with them. Matter waves have no electric and magnetic fields associated with them. These waves can easily pass through vacuum. These waves cannot pass through vacuum.                     ...

Read More »

Planck’s radiation law and quantum theory of radiation

Definition Planck’s radiation law Rayleigh Jeans law and Wien’s formulae were failed to solve the problem of distribution of spectral radiancy among various wavelengths in cavity radiations because these formulas were based upon the classical theory. Planck’s quantum theory of radiation In 1900,Max Planck gave the new concept about the nature of radiation,called quantum theory of radiation in which planck ...

Read More »

De broglie and Dual nature of matter and light

What is dual nature of matter? Our mental views of wave and particles are drawn from familiarity with very large scale objects such as tennis balls and ocean waves.Like paul Davies ,physicist and science writer it is impossible to visualize a wave particle so do not try what then are we to do? Neil Bohr views about dual nature of ...

Read More »

Helium (he) Neon (ne) laser working animation

Helium-Neon Laser A helium-neon laser, usually called a HeNe laser, is a small gas laser. Its usual operation wavelength is 632.8 nm, in the red portion of the visible spectrum. Construction:   Working: It is most common type of a lasers used in physics laboratories. Its discharge tube is fitted with 80% helium and 20% neon gas. The neon is ...

Read More »

What are the different types of nuclear reactions?

Nuclear reactions Nuclear fission Nuclear fusion Nuclear reactor Nuclear Reaction definition While studying radioactivity,we have seen that an α-particle is emitted from radium-226 and radon-222 is obtained. This nuclear is change is represented by the following equation: Such an equation represents a nuclear reaction. Above mentioned nuclear reaction takes place on its own accord. However, it was Rutherford who, first of ...

Read More »

Nuclear reactor:Definition,types and components

What is nuclear reactor?How does it works ? In a nuclear power station the reactor plays the same part as does furnace in a thermal power station. In a furnace, coil or oil is burnt to produce heat, while in a reactor fission reaction produces heat. When fission takes place in the atom of uranium or another heavy atom, then ...

Read More »

Atmospheric pressure at sea level:Definition,formula & applications

Atmospheric Pressure The Earth is surrounded by a cover of air called atmosphere. It extends to a few hundred kilometers above sea level. Just as certain sea creatures live at the bottom of ocean, we live at the bottom of a huge ocean of air. Air is a mixture of gases. The density of air in the atmosphere is not ...

Read More »

Pascal’s principle (law): formula,applications & examples in real life

What is Pascal’s Law and how do we use it? An external force applied on the surface of a liquid increases the liquid pressure at the surface of the liquid. This increase in liquid pressure in transmitted equally in all directions and to the walls of the container in which it is filled. This result is called Pascal’s law which ...

Read More »