Light acts as a wave

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Light acts as a wave

Postby rachelle1K » Tue Nov 05, 2019 8:53 pm

Why does the photoelectric effect tell us that light can act as wave when in the experiment frequency/ intensity of light did not play a role in removing electrons from the metal?

Sebastian Lee 1L
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Re: Light acts as a wave

Postby Sebastian Lee 1L » Tue Nov 05, 2019 10:38 pm

I'm pretty sure the photoelectric effect supports the particle/photon model of electromagnetic radiation because increasing the intensity of a low frequency light didn't eject electrons. It supports the theory of discrete, quantized packets of energy which each have energy dependent on frequency. Intensity refers to the number of photons not the energy (like the wave model would suggest).

What does support the wave model of light is diffraction patterns.

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Re: Light acts as a wave

Postby AlyshaP_2B » Tue Nov 05, 2019 10:48 pm

The photoelectric effect tells us that light is quantized into packets of energy (photons). De Broglie's equation is the one that supports the idea of electrons being able to have wave like properties!

Eesha Chattopadhyay 2K
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Re: Light acts as a wave

Postby Eesha Chattopadhyay 2K » Sun Nov 10, 2019 11:19 pm

The photoelectric effect is the one that supports the article properties of light, while de broglie supported the wave like properties. The photoelectric effect talks about how intensity doesn't affect the energy of light, where if there were solely wake like properties, this would not be the case.

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Re: Light acts as a wave

Postby katrinawong3d » Sun Nov 10, 2019 11:24 pm

The photoelectric effect supports the particle model of light as the experiment saw that changing the intensity of light didn't eject electrons, but rather that ejection of electrons depended on the frequency of light.

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