photoelectric effect

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Rose_Malki_3G
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photoelectric effect

Postby Rose_Malki_3G » Fri Oct 16, 2020 3:58 pm

Is the threshold energy the same thing as the work function?

Alvin Lai 3J
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Re: photoelectric effect

Postby Alvin Lai 3J » Fri Oct 16, 2020 3:59 pm

Yes work function is the same as the threshold energy.

Alara Aygen 3K
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Re: photoelectric effect

Postby Alara Aygen 3K » Fri Oct 16, 2020 4:01 pm

Yes, the first time they conducted the experiment they called it the threshold energy because the amount of energy needed to eject an electron had to be higher than that. I believe the work function is a more accurate term, but they mean the same thing.

Jessica Manriquez 1H
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Re: photoelectric effect

Postby Jessica Manriquez 1H » Fri Oct 16, 2020 4:28 pm

Yes, the threshold and work function basically mean the same thing. Threshold was used when the experiment was first conducted, but now its more commonly known as the work function.

Mackenzie Stockton 2H
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Re: photoelectric effect

Postby Mackenzie Stockton 2H » Fri Oct 16, 2020 4:40 pm

yes, the threshold energy is the same as the work function. remember that this is equal to the amount of energy that is required to remove from electron from a certain element/atom (ejecting it so that the electron is no longer associated with the atom).

505598869
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Re: photoelectric effect

Postby 505598869 » Sun Oct 18, 2020 12:12 pm

Yes that are the same. They both equal the amount of energy required from a photon to remove an electron from the metal surface.

jasonfarrales3D
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Re: photoelectric effect

Postby jasonfarrales3D » Sun Oct 18, 2020 2:18 pm

Yes, the terms threshold energy and work function are synonyms of each other.

Karina Rodriguez 2H
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Re: photoelectric effect

Postby Karina Rodriguez 2H » Sun Oct 18, 2020 2:20 pm

Yes, threshold energy is the same as work function. The two can be used interchangeably to mean the energy required to remove electrons from metals.

Simi Kapila_3E
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Re: photoelectric effect

Postby Simi Kapila_3E » Sun Oct 18, 2020 2:21 pm

Yes, they mean the same thing, it is just two different ways to say it.

Brandon Gruender 3F
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Re: photoelectric effect

Postby Brandon Gruender 3F » Sun Oct 18, 2020 2:23 pm

Yes, they are the same thing. They both are the amount of energy required from a wave of light to remove an electron from a metal.

Carolina Gomez 2G
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Re: photoelectric effect

Postby Carolina Gomez 2G » Sun Oct 18, 2020 5:10 pm

Yes, the threshold energy and the work function are the same. It is the amount of energy needed for the electron to be ejected in the photoelectric effect. The energy of the incoming photon needs to be greater than or equal to the work function/ threshold energy for the electron to be ejected.

DPatel_2L
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Re: photoelectric effect

Postby DPatel_2L » Sun Oct 18, 2020 5:24 pm

Yes they both are the same.

Yashvi Reddy 1H
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Re: photoelectric effect

Postby Yashvi Reddy 1H » Sun Oct 18, 2020 6:22 pm

Hello! Great question. From what I remember, and according to the textbook, the work function of a metal refers to the amount of energy required to remove an electron from that metal. Additionally, Chemical Principles states that, "No electrons are ejected unless the radiation has a frequency above a certain threshold value that is characteristic of the metal." I believe this means that there is a small difference between the two terms, but I agree that the two can be used interchangeably in calculating during an equation. Good luck!!!

Jerry_T
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Re: photoelectric effect

Postby Jerry_T » Sun Oct 18, 2020 9:16 pm

Yes, threshold energy and work function are interchangeable.

Jonathan Malau 1F
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Re: photoelectric effect

Postby Jonathan Malau 1F » Sun Oct 18, 2020 9:44 pm

I think there is just a slight difference within the definitions of the two terms. Threshold frequency refers to the minimum frequency of incident light that causes the metal surface to emit electrons, while work function is the minimum amount of energy necessary to remove an electron from an atom. Nevertheless, in calculation, they are interchangeable.

Diana Aguilar 3H
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Re: photoelectric effect

Postby Diana Aguilar 3H » Sun Oct 18, 2020 10:21 pm

Yes threshold energy and work function are the same thing. Threshold energy was just the term used when the study was first conducted, but today it is more commonly known as work function.

vuongnaomi1L
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Re: photoelectric effect

Postby vuongnaomi1L » Sun Oct 18, 2020 10:26 pm

Yes, the threshold energy is the work function.

For example, when you get a question that says that some amount of energy is required to remove an electron with zero kinetic energy, then you would know that the given amount of energy is the work function. This is due to the law of conservation of mass, which states, incoming photon = threshold energy + kinetic energy. Since kinetic energy in this case is 0, then incoming photon=threshold energy.

Andy Hernandez
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Re: photoelectric effect

Postby Andy Hernandez » Sun Oct 18, 2020 10:27 pm

yes, the threshold is the same thing as the work function


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