Dual Behavior of Matter, De Broglie equation,

By -

From the various  experiments involving  the Interactions  of light and matter, Radiation has dual nature i.e it posses properties  of both wave and particles.  photo-Electric effect show that light behaves as particles. where as Young double slit experiment show that light behaves as waves.

On examination of Planck's and Einstein's  relationship,  L. de Broglie (1923) concluded  that the  energy is associated with both radiation and matter.

De Broglie Hypothesis:

A wave is  Associated with a moving material particles which controls a particles  in every respect


wavelength =  Planck's constant  / momentum 

Limitations:

From de Broglie equation, we may conclude that wave nature of matter will manifest only when mass (m) is very small compared to (h).


This is Shoaib Alam, Man behind your ElectronGate

Comments

Post a Comment

Popular posts from this blog

I Wonder, By Jeannie Kirby [ poem ]

By -
                      I Wonder  I wonder why the grass is green, and why the wind is never seen ? Who taught the birds to build a nest,    And told to trees to take a rest ? O,  When the moon is not quite round, Where can the missing bit be found ? Who lights the stars, when they blow out,    And makes the lightning flash about ? Who paints the rainbow in the sky, And hangs the fluffy clouds so high? Why is it now, do you suppose, That Dad won't tell me , if he knows?                                                by  Jeannie Kirby
Read more

Alpha, Beta, &Gamma Particles

By -
Image
https://youtu.be/oLhDYRDdNl0 Alpha rays :- Nature: He nuclei represented as    2 He⁴  or He²+ Mass :    4 a.m.u or  6.642 × 10^ –27 kg Charge : Positive charge of +2 units Penetrating power : Minimum -0.1 mm thick aluminum foil can stop it. Ionising power :   Maximum. Beta rays:- Nature: Stream of electron represented as -1e⁰. Mass :    0.000548597 a.m.u. or 9.1 x 10 - 31 kg Charge : Negative charge of –1 unit. Penetrating power : It is stopped by 5 mm thick Aluminum foil. Ionising power : Less than Alpha but more than Gamma rays. Gamma rays:— Nature : Electromagnetic waves of very short wavelengths. Mass : No mass Charge : 0 Penetrating power : Maximum — even 750 mm thick pb plate cannot stop it. Ionising power : very Low.
Read more

Discovery of Radioactivity / what is Radioactivity?

By -
Image
 The French physicist Henry Becquerel was engaged in furnishing a relation between X-rays and luminescence  exhibited by Uranium salts. Hindi video lecture dekhne k lie  👇👇👇   One day in 1896 by chance he wrapped a photographic plate in a thick black paper and placed a small crystal of potassium uranyl sulphate upon the black paper.Next day to his surprise he saw that the photographic plate had darkened at some places.  Becquerel concluded that the uranium salt had emitted a kind of ray which could penetrate the thick black paper, like X-rays.  Discovery of Radioactivity  After  thorough Investigation on the nature and the characteristics of the rays he came to the following conclusions  :--- 1. Uranium salts spontaneously emitted a kind of that could not be controlled by any physical or chemical condition.  2.  The ray could fog photographic plate wrapped in black paper and could pass through thin sheets of metal foil which are opaque to ordinary light. 3.  the ray could ionise the
Read more