## Differences between Particle and Wave

Timmy Nguyen Dis 1I
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### Differences between Particle and Wave

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Joined: Sat Aug 17, 2019 12:15 am

### Re: Differences between Particle and Wave

There are two models: In the wave model the intensity of radiation is proportional to the square of the amplitude of the wave and in the particle model intensity is proportional to the number of photons. Electrons and all matters have both particle and wavelike properties. This would be known as the wave-particle duality of matter. A particle would only occupy one space whereas in a wave frequency is involved as it is spread out over space. Throughout this chapter, the book goes into detail about how scientists were able to deduce that it was not just one model or the other.

Alex Chen 2L
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Joined: Wed Sep 18, 2019 12:21 am

### Re: Differences between Particle and Wave

I'm going to use light as the example we went over in lecture. Light has wavelike properties in that it oscillates and has a wavelength, frequency, and amplitude. However, it also has particle-like properties since the photoelectric effect demonstrates that light carries energy in discrete amounts within photons, meaning that light intensity (energy) does not increase with amplitude of the wave, but instead with a shorter wavelength and therefore a higher frequency of photons being emitted.

In short, particles carry a specific (discrete) amount of energy and can behave like a wave sometimes, as demonstrated by light. They are not necessary separate.

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Joined: Sat Aug 17, 2019 12:17 am

### Re: Differences between Particle and Wave

Timmy Nguyen Dis 3F wrote:Hey can someone please help explain the differences exactly? I'm a bit confused.

I believe that all matter has wavelike properties, however only when objects have a very small mass, e- for example, can such wavelike properties be actually tested upon. Seen with De Broglie's equation, any moving particle with momentum has wavelike properties, however the waves length will be so small it cannot be physically measurable/detected in a laboratory setting.

Timmy Nguyen Dis 1I
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Joined: Sat Aug 17, 2019 12:17 am

### Re: Differences between Particle and Wave

Ada Chung 1C wrote:There are two models: In the wave model the intensity of radiation is proportional to the square of the amplitude of the wave and in the particle model intensity is proportional to the number of photons. Electrons and all matters have both particle and wavelike properties. This would be known as the wave-particle duality of matter. A particle would only occupy one space whereas in a wave frequency is involved as it is spread out over space. Throughout this chapter, the book goes into detail about how scientists were able to deduce that it was not just one model or the other.

Wait so if something has wavelike properties it can exist in multiple places at the same time?? or am I getting really confused?

Luyan Zhang - 2D
Posts: 103
Joined: Sat Jul 20, 2019 12:16 am

### Re: Differences between Particle and Wave

On the large scale, light acts like a wave (diffraction). On the small scale, light is composed of photons, or particles (photoelectric effect).