Question

Formula for work function? OPTOELECTRONICS

Answer 1

@mathslover , @Somy

Answer 2

oh i don't know this T_T im sorry

Answer 3

NP

Answer 4

isn't it math??

Answer 5

I'm not getting this formula anywhere , not even on internet :)

Answer 6

@hartnn

Answer 7

@Kainui mb u can help?

Answer 8

I didn't know there was a formula for the work function, I believe it's something you have to determine by experiment by shooting light at metal until electrons pop out.

Answer 9

Yeah but i am learning photoelectric effect .
And there is some formula

Answer 10

Oh, \[E=h \nu - \Phi \] That's how the formula looks, E is energy, h is planck's constant, nu (v) is the frequency of incident light, and phi is the workfunction of the metal.

So if the light hitting the metal doesn't have a high enough frequency, there will be no electrons ejected from the metal until it's higher than the workfunction. This is the Photoelectric effect that Einstein won the Nobel Prize for actually.

Answer 11

YUP know that formula

Answer 12

Yeah, that's it.

Answer 13

wait
is it
E=hv

where is Work function

Answer 14

good luck guys :D

Answer 15

The extra part at the end, that's not exactly the same as what I wrote.

Answer 16

Thanks @Somy

Answer 17

The work function isn't "Work" in terms of "Joules" or a "function" in terms of "f(x)". It's just a name we give the constant in that equation.

Answer 18

no problem though i couldn't help >_<

Answer 19

yes

Answer 20

i also wanted the formula for bohr radius

Answer 21

A simplified one , with all rubbish constans and everything evaluated ,
otherwise with those it creates a meter long equation

Answer 22

:)

Answer 23

heyy i got it the radius

Answer 24

THanks DUDE