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

Motion, to draw v-t graph with variable retardation

to draw v-t graph with variable retardation

Determine state when 3 capacitors connected in series, Three capacitors wit...

Three capacitors with different capacitances are connected in series.  Which of the following statements is TRUE? a) All three of the capacitors have the same potential diffe

Example, example of like paralle forces

example of like paralle forces

Identify the key terms in wave function, Identify the key terms in the wave...

Identify the key terms in the wave function provided by

When a semiconductor is doped with a p-type impurity, When a semiconductor ...

When a semiconductor is doped with a P-type impurity, each impurity atom will (A) Acquire negative charge.                        (B) Acquire positive charge. (C) Remain

Transformers, a transformer has a primary coil with 200 turns, and a second...

a transformer has a primary coil with 200 turns, and a secondary coil with 2000 turns. The input voltage is 120 VAC, and runs at 1800 watts. What is the output voltage?

Show the amperes law, The integral in Ampere's Law is an integral. ...

The integral in Ampere's Law is an integral. Answer: The integral is an integral along (over) a closed path (curve).

Explain units of coulomb and candle, Coulomb: Coulomb is the fundamental u...

Coulomb: Coulomb is the fundamental unit of charge. It is explained as the charge required to obtain 9?109 newton of force among two equal charges separated at a distance of one m

How energy is delivered to such a bulb in an hour, The power distribute to ...

The power distribute to a 15 watt light bulb in normal operation is 15 watts. In normal operation how greatly energy is delivered to such a bulb in an hour? Feedback:

Descrieb the types of magnetic material, On the basis of mutual interaction...

On the basis of mutual interactions or behavior of several materials in an external magnetic field, the materials are dividing in three basic categories. (i) Diamagnetic materi

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