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Modern Physics

Binding Energy and mass defect

The basic difference mass defect and binding energy is that mass defect is used to represent the mass of binding energy of the nucleus and is the difference between sum of masses of nucleons and mass of nucleus,while binding energy is used to find whether fusion or fission reaction will be a favorable process. Physically, we define the binding energy as ...

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Cosmic rays : Definition,uses and effects

The rays which receive on earth from outer space are called cosmic rays.It has been found that extremely penetrating radiations consisting of charged and uncharged particles and photons are reaching the earth. These radiations are called Cosmic Radiations. The sources of these radiations lie beyond the sun or the other stars of our galaxy. The radiations reaching the top of ...

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Why radio waves diffract around buildings?

Diffraction of radio waves The phenomenon of bending of waves around the corners of an obstacle or opening placed in its path is called diffraction.The phenomenon is found to be prominent when wavelength of the waves is comparable with the size of the obstacle or opening. Radio waves are of large wavelengths and the size of obstacles and openings of ...

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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 ...

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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 ...

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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.                     ...

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Dual nature of matter and De broglie wavelength

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 According to Neil Bohr ...

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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 the most common type of a laser used in physics laboratories. Its discharge tube is fitted with 80% helium and 20% neon gas. The neon ...

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uses of laser in daily life

List of uses of laser and applications in the field of medicine, industry, and agriculture The intense heat produced in a small area by a laser beam is also used for welding and matching metals and for drilling tiny holes in the hard material. The precise straightness of a laser beam is also useful to surveyors for lining up equipment ...

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uses and applications of x rays waves in everyday life

Uses of gamma rays in everyday life 1:Radio Therapy X-rays kill the diseased tissues of the body.Hence they are used to λ cure intractable skin diseases,malignant tumours etc.If the affected part is superficial soft rays are applied and for deep seated organs hard rays are used. 2:Engineering Because of their high penetrating power they are used ti investigate the structure of ...

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