Uncertainty principle, Physics

Assignment Help:

Uncertainty principle (W. Heisenberg; 1927):

A principle, central to quantum mechanics, that states two complementary parameters (such as position & momentum, energy & time, or angular momentum & displacement) cannot both be known to infinite accuracy; the more you know regarding one, the less you know regarding the other.

It can be reveled in a quite clear way as it associate to position vs. momentum: To see something (let's say an electron), we ought to fire photons at it; they bounce off and come back to us, thus we can "see" it. If you select low-frequency photons, along a low energy, they do not pass on much momentum to the electron; however they give you a very fuzzy picture, thus you have a higher uncertainty in situation so that you can contain a higher certainty in momentum. Conversely, if you were to fire extremely high-energy photons (x-rays or gammas) at the electron, they would provide you a very apparent picture of where the electron is (higher certainty in position), however would impart great deal of momentum to the electron (higher uncertainty in momentum).

In a more general sense, the uncertainty principle tells us that the action of observing changes the observed in fundamental way.


Related Discussions:- Uncertainty principle

Op-amp as a subtractor, Op-amp as a Subtractor A fundamental differe...

Op-amp as a Subtractor A fundamental differential amplifier can be used as a subtractor as shown in figure (c) In this figure, all external resistors are equal in value, so

Electronics, is voltage source have infinite internal resistance

is voltage source have infinite internal resistance

Write the maxwells electromagnetic equation, Write the Maxwell's electromag...

Write the Maxwell's electromagnetic equation, which follows from the non-existence of isolated magnetic pole

Optical rotation, expression of optical rotation based on his assumptions

expression of optical rotation based on his assumptions

Work-energy theorem, In whole analog to the work energy theorem for the tra...

In whole analog to the work energy theorem for the translator motion, it might be stated for rotational motion as:  Δ W rot =  K rot The net rotational work given by the force

Determine the acceleration, Q. A truck loaded with sand accelerates along ...

Q. A truck loaded with sand accelerates along a highway. If the driving force stays the same on the truck, what happens to the truck's acceleration if its trailer leaks sand at a

Help, #questionyour dog is running around the grass in your back yard. He u...

#questionyour dog is running around the grass in your back yard. He undergoes successive displacements 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displa

Volt meter, Ask question #Minimum 200 words accepted#

Ask question #Minimum 200 words accepted#

Explain chain reactor, Chain Reactor: Splitting of nuclei also causes t...

Chain Reactor: Splitting of nuclei also causes the emission of neutrons. If these neutron cause further fission in the other nuclei and this process continues, then it is known

Atoms And Nuclei, Prove that the various stationary orbit are not equally s...

Prove that the various stationary orbit are not equally spaced?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd