Wave Particle Duality examples
3 posters
Wave Particle Duality examples
Does anyone remember the examples of wave particle duality, like how light behaves as a wave or particle, and particle acting as waves or particles?
TomWightman- Posts : 10
Join date : 2012-04-04
Wave Particle Duality
Light as wave - diffraction
Light as particle- photoelectric effect
matter particle as wave - diffraction
matter particle as particle - deflection in magnetic field
Light as particle- photoelectric effect
matter particle as wave - diffraction
matter particle as particle - deflection in magnetic field
jmorris- Admin
- Posts : 171
Join date : 2012-01-31
Re: Wave Particle Duality examples
the question asked give to examples in experement that showed that light is a partical and is a wave
light as a wave i used younges slits
light as a partical the photoelectric effect
younges slits
-monochromatic light diffracts between a slit
-then it diffracts through 2 creating
-2 coherent sources of light
-on the screen where they constructivly interfere they are in phase, whole wavelengths apart causing bright fringes
-on the screen where they destructivly interfere they are out phase by pi radians, whole+ 1/2 wavelengths apart causing dark fringes
-if they where paricals then only two bright fringes would be seen not many as is seen as waves diffract and spread out
photoelectric effect
-when a light is shone on to a surface of a metal then electrons are emitted these are called photoelectrons
-under a certain wave length no photoelectrons are emitted
-if light is a wave then it has infinet length and thus has infinet energy
-thus photoelectrons would be emitted no matter how short the wave length due to there being an infinet amount of energy alls that it would take is more time to emit the electrons
-thus light acts as small packets of waves called 'quontum'
light as a wave i used younges slits
light as a partical the photoelectric effect
younges slits
-monochromatic light diffracts between a slit
-then it diffracts through 2 creating
-2 coherent sources of light
-on the screen where they constructivly interfere they are in phase, whole wavelengths apart causing bright fringes
-on the screen where they destructivly interfere they are out phase by pi radians, whole+ 1/2 wavelengths apart causing dark fringes
-if they where paricals then only two bright fringes would be seen not many as is seen as waves diffract and spread out
photoelectric effect
-when a light is shone on to a surface of a metal then electrons are emitted these are called photoelectrons
-under a certain wave length no photoelectrons are emitted
-if light is a wave then it has infinet length and thus has infinet energy
-thus photoelectrons would be emitted no matter how short the wave length due to there being an infinet amount of energy alls that it would take is more time to emit the electrons
-thus light acts as small packets of waves called 'quontum'
Joseph Wardley- Posts : 30
Join date : 2012-03-29
Age : 32
Location : Walkden
Similar topics
» Wave Particle Duality
» Wave Particle Duality
» Wave Particle Duality Timeline
» Huygen's Wave Theory
» Unit 2 Revision - formation of stationary Wave
» Wave Particle Duality
» Wave Particle Duality Timeline
» Huygen's Wave Theory
» Unit 2 Revision - formation of stationary Wave
Permissions in this forum:
You cannot reply to topics in this forum
|
|