Einstein utilized planck's quantum...

Question

explain how einstein utilized planck's quantum concept in explaining the photoelectric effect.

Answer 1

It was observed that ultraviolet light with enough energy would create a photo current when incident upon conductors.

So Einstein used Planck's quantum equation to describe the situation:

Energy incident = work function + KEmax of the electron freed from the conductor.

The Energy incident = hf   (Planck's constant * frequency of the light)

Work function = the amount of energy required to remove an electron from the metal in question.

KEmax = maximum kinetic energy of the electron that is removed from the metal.

The KEmax could be measured by setting up a potential difference between the anode and cathode of the metal being subjected to the UV radiation. The charge of an electron q times the maximum potential difference Vs for which a photocurrent is still created is equal to the maximum KE of the ejected electrons.  (Vs is called the stopping potential.)

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Answer 2

that's deep O.o

wish i could answer that but i have absolutely no idea n-nU

i know who both of them are but i dont know what the photoelectric effect is i think ill google it ^-^