What Unique Behaviour of Light Does the Wave Model Explain?

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The discussion focuses on the wave model of light, specifically its ability to explain interference patterns that the particle model cannot. The key behavior in question is the interference of light waves, which occurs when light passes through a diffraction grating. This setup allows for the observation of light and dark bands, indicative of constructive and destructive interference. The classic Young's experiment demonstrates this phenomenon, where monochromatic light is directed through a single slit and then through a double slit, resulting in an interference pattern that reveals the wavelength of the light. The wave model effectively accounts for these patterns, highlighting the significance of wave behavior in understanding light's properties.
Velocity
The wave model of light can describe a particular behaviour of light while the particle model is unable to account for this observation of light behaviour... What is this specific behaviour? and how does the wave model account for the behaviour and allow us to determine the wavelength of light[?]...i need help asap...thanks
 
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This sounds suspiciously like homework!

Waves disply the interference of amplitudes, and if you make a periodic array in space, a diffraction grating, you can use it to determine wavelength.
 
The classic experiment is Young's experiment.

Set up a ray of monochromatic light at two sets of diffraction slitting, with one slit on the first set and two slits on the second. Shining the light at the first slit produces interference patterns behind the second, which cannot be explained without waves.

Crappy ASCII diagram ahead! ~ = empty space

~~~~~~~~~~~|~~~~|~~#
~~~~~~~~~~~|~~~~~~~* Light and dark bands
~~~~~~~~~~~|~~~~|~~#
source O~~~~~~~~~~|~~*
~~~~~~~~~~~|~~~~|~~#
~~~~~~~~~~~|~~~~~~~*
~~~~~~~~~~~|~~~~|~~#
 
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