But it is a different case in the world of atoms. The subatomic particles inside the atoms are so small that light waves bouncing off atoms causes them to change direction and speed, and in some case even knocks the electrons in the atom away from orbit.
So no matter what these subatomic particles collude with (light, other little particles, air molecules etc.) it always changes the position and/or speed of the particles.
This makes it impossible to measure the position and speed of subatomic particles simultaneously. So we can say that we can only measure the speed and position of subatomic particles within a certain range or within a certain uncertainty. This is called Heisenberg's uncertainty principle.
.jpg)
The Uncertainty principle states that the motion and momentum of a microscope particle can not be determined simultaneously with precision.
ReplyDeleteAccording to your post, even electromagnetic wave like light have influence in the motion of microscopic 'particles'. But how does an electromagnetic particle like photon (with no mass or charge) influence the motion of a microscopic particle? Because we know that, radioactive ray 'gamma', is compared with electromagnetic wave, but when it passes through air, it does not create any ionization.
Furthermore, we know from De Broglie's concept about the dual nature of a microscopic particle in motion, i.e. they behave both as particle and wave. So my question is, what kind of wave interference will be created when external electromagnetic wave collide with waves of electron, proton, neutron, ions & other microscopic particles in motion, to cause the change of position & momentum of the respective waves? And the other question is, if it was possible to observe the position & velocity of a microscopic particle without any external influence, would it be possible to determine the exact position & momentum of the respective particle simultaneously with certainty? (hypothetical question)