Photoelectric Effect


Moderators: Chem_Mod, Chem_Admin

AlexandraZuniga1L
Posts: 33
Joined: Thu Feb 15, 2018 3:02 am

Photoelectric Effect

Postby AlexandraZuniga1L » Sun Oct 21, 2018 9:34 pm

What is the photoelectric affect?

Ronak Singh
Posts: 31
Joined: Fri Sep 28, 2018 12:16 am

Re: Photoelectric Effect

Postby Ronak Singh » Sun Oct 21, 2018 9:41 pm

The photoelectric effect is the emission of electrons from a material due to the shining of a light.

mcredi
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: Photoelectric Effect

Postby mcredi » Sun Oct 21, 2018 9:47 pm

When light shines on a metal, electrons can be ejected from the surface of the metal in a phenomenon known as the photoelectric effect. The photoelectric effect did not produce the results they expected but rather supports the view that radiation consists of photons that behave like particles. Basically, it says that if the energy of a photon is less than the energy required to remove an electron then an electron will not be ejected regardless of the intensity of the radiation.

Vanadium Wang 4H
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Photoelectric Effect

Postby Vanadium Wang 4H » Tue Oct 23, 2018 2:22 am

The book defines photoelectric effect as "the emission of electrons from the surface of a metal when electromagnetic radiation strikes it."

Jasmine Chow 1F
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 1 time

Re: Photoelectric Effect

Postby Jasmine Chow 1F » Tue Oct 23, 2018 12:32 pm

The photoelectric effect is the emission of electrons caused by the threshold of the metal and the energy of the photon.

SummerLee1F
Posts: 18
Joined: Fri Sep 28, 2018 12:16 am

Re: Photoelectric Effect

Postby SummerLee1F » Sat Oct 27, 2018 8:02 pm

The photoelectric effect is a measurement of how much kinetic energy (or electrons) is released when a photon hits a metal surface. It calculates threshold and if the frequency of the photon is large enough(meaning it is larger than the threshold) to release electrons.

204765696
Posts: 23
Joined: Wed May 16, 2018 3:00 am

Re: Photoelectric Effect

Postby 204765696 » Sun Oct 28, 2018 1:21 am

It's the emission of electrons from a material due to the shining of a light

Abhi4F
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

Re: Photoelectric Effect

Postby Abhi4F » Sun Oct 28, 2018 11:34 pm

The photoelectric effect is the emission of electrons from the radiation of a light that is greater than the threshold energy. It showed that intensity does not affect the ejection of light, but that one photon interacts with one electron.

daniela3D
Posts: 19
Joined: Fri Sep 28, 2018 12:25 am

Re: Photoelectric Effect

Postby daniela3D » Sun Nov 18, 2018 9:45 pm

The photoelectric effect is a metal surface that emits electrons when light is shun upon it. In order to solve a problem like this you can use the equation: Ephoton- Work Function= Ekinetic.
Work Function= property of the metal surface
Ephoton: if not given use equations (E=hv; c=wavelength*frequency; E=hc/wavelength)
Ekinetic: Ek=1/2mv^2


Return to “Properties of Light”

Who is online

Users browsing this forum: No registered users and 2 guests