Wave vs particle properties

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Isabel Day 1D
Posts: 48
Joined: Fri Aug 09, 2019 12:15 am

Wave vs particle properties

Postby Isabel Day 1D » Sun Oct 13, 2019 3:41 pm

I'm, having a hard time understanding how light can have both wave and particle properties. Do both of these properties exist at the same time? If anybody has a good visual way of thinking about it that would be super helpful.

Kurtis Liang 3I
Posts: 50
Joined: Sat Aug 24, 2019 12:17 am

Re: Wave vs particle properties

Postby Kurtis Liang 3I » Sun Oct 13, 2019 4:49 pm

The idea is that light acts as BOTH a wave and a particle. The diffraction of light through a slit explains it's wave-like properties, and the photoelectric effect supports the argument that it can also behave like a packet of light, or a particle. What helped me understand it was looking more into Young's double-slit diffraction experiment.

Ali Polansky 1A
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Re: Wave vs particle properties

Postby Ali Polansky 1A » Sun Oct 13, 2019 4:53 pm

Yes, both properties exist simultaneously. I found this video to be helpful in explaining the duality of light as a wave and as a particle.

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Joined: Fri Aug 09, 2019 12:16 am

Re: Wave vs particle properties

Postby claudia_1h » Sun Oct 13, 2019 4:59 pm

Yes, light does exhibit both particle-like and wavelike properties. In fact, all objects with momentum p have "wavelike properties" according to the De Broglie wave equation. However, not all particles (like the car example in class) have measurable wavelike behavior. Light can behave like both a particle and a wave, and does exhibit measurable wavelike behavior.

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Re: Wave vs particle properties

Postby 505306205 » Sun Oct 13, 2019 6:42 pm

It is also important to remember that equations for electromagnetic radiation (waves) cannot be directly applied to equations for measuring wavelength associated with an electron. For example, the equation: c = lamda x frequency cannot be used to solve for the electron's wavelength. There is a separate equation for that which is lamda = h/p.

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