What's Albert Einstein's Photoelectric <span title="effect~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`">effect~~~~~~~~~~~~~~~~~~~...</span>

Question

Hello~

What's Albert Einstein's Photoelectric effect?

I searched about it but I still dont have no idea ...

Can u please explain it to me as if you r explaining it to a child ??

Thank You :)

Answer 1

search it on wikipedia

u will get nice info there

Answer 2

Easy way to look at it - Light hits and object and that object releases some energy.

Medium easy way to look at it - Light (or some other electromagnetic radiation such as x-rays) is absorbed by an object (piece of matter), then the object emits electrons (energy).

Even less easy way to look at it - The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electromagnetic radiation such as x-rays or visible light.

See the picture in the link below, it is very easy to understand.

http://en.wikipedia.org/wiki/Photoelectr...

Answer 3

OK lets see if i have it.

at the quantum level, &quot; small real small, the size of atoms&quot; is when it takes place.

1st light is both a wave and a particle, that has been tested and proved.

the wave is the &quot;frequency or to our eyes the colour&quot; of the light and the particle  &quot;photon&quot; is the carrier of electromagnetic radiation, the energy of light &quot;the warmth of the sun on your skin&quot; its important to note that light is not one or the other but both called wave–particle duality.

now the Photoelectric effect

imagine a steel plate, again at the quantum level &quot;if you could you would see the individual atoms of the steel plate&quot;. the positively changed protons and the neutral charged neutrons at the centre with a cloud of negatively charged electrons surrounding them. now introduce light to the atoms. the protons from the light the ones that Cary the electromagnetic radiation &quot;charge&quot; smash into the atoms.  Electrons can absorb energy from photons when irradiated. the energy from one photon is absorbed and used to liberate one electron from atomic binding. if an electron absorbs the energy of one photon and has more energy than the work function it get kicked out of the atom.

its simple right. no its not.

hoped this helped