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

What is hologram, What is hologram? Holography When an entity ...

What is hologram? Holography When an entity is photographed by a camera a two dimensional image of three dimensional objects is obtained. A three dimensional image of

Determine the wavelength of the traveling wave, A string has a linear densi...

A string has a linear density of 7.20 10-3 kg/m and is under a tension of 390 N. The string is 1.9 m long, is fixed at both ends, and is vibrating in the standing wave pattern sho

Scalar and vector, example of problems of vector and scalar with solution

example of problems of vector and scalar with solution

Determine electric field vector for a negative point charge, For a negative...

For a negative point charge, the electric field vectors: a) Circle the charge b) Point radially in toward the charge c) Point radially away from the charge d) C

Ultrasonic-interferameter , Ultrasonic-interferameter 1.defenition 2.app...

Ultrasonic-interferameter 1.defenition 2.applications 3.uses 4.free lenth 5.Compressibility Ans)An Ultrasonic Interferometer is a easy and direct device to determine the ul

Crude, crude oil distillaiton

crude oil distillaiton

Two resistors are connected in series - current, Two resistors are connecte...

Two resistors are connected in series across an 18V supply and a current of 5A ?ows. If one of the resistors has a value of 2.4Ω determine (a) the value of the other resist

Explain antinodes of standing waves, The points of maximum amplitude are ca...

The points of maximum amplitude are called as antinodes. At ends density and air pressure both are very low.

Explain elastic collision, ELASTIC COLLISION:  "The collision in which ...

ELASTIC COLLISION:  "The collision in which both linear momentum and K.E are conserved is said to be elastic collision".                  OR "In the ideal case when no K

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