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

Drift of charge carriers in semiconductor, Ohm''s law establishment using d...

Ohm''s law establishment using drift of charge carriers

Determine the pd across the resistor, An alternating voltage v=250sin800t v...

An alternating voltage v=250sin800t volts is applied across a series circuit having a 30 resistor and 50µF capacitor. Calculate (a) the circuit impedance, (b) the current ?

Woodward-hoffmann rules, Woodward-Hoffmann rules: These Rules govern t...

Woodward-Hoffmann rules: These Rules govern the formation of products throughout certain types of organic reactions.

Not gate , give me full detail about not gate i.e its logic symbol, truth t...

give me full detail about not gate i.e its logic symbol, truth table etc

Determine the coefficient of maximum static friction, Dalila decides to det...

Dalila decides to determine the coefficient of maximum static friction for wood against wood by conducting an experiment. First she places a block of wood on a small plank; nex

What is non-ohmic device, When the curve is not simple or linear as diode v...

When the curve is not simple or linear as diode valve is known as non-ohmic device.

Nicol prism, Working of nicol prism and its uses as polarizer and analyzer

Working of nicol prism and its uses as polarizer and analyzer

Define baron von munchausen and intergalactic travel, Define Baron von Münc...

Define Baron von Münchausen and Intergalactic Travel? Recently get archives of the late Baron von Münchausen brought to light some unpublished scientific papers. In one of them

A, what is electron

what is electron

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