Question

define stopping potential what is the maximum kinetic energy of photoelectron and stopping potential

Answer 1

please ask 10 level questions

Answer 2

Samajh na aaye to mujhse mt puchna....

mein isse jayaexplain nhi kr sakti...

Now, I know that the max kinetic energy of the electrons emitted is

KEmax=hν−eϕem

where ϕem is the work function of the emitter electrode (on the left in the diagram). And my lecturer agrees with that, but he tells us that the stopping potential V0 can be found using

eV0=hν−eϕcol

where ϕcol is the work function of the collector electrode (on the right in the diagram). The emitter and collector electrodes are made from different metals.

What I don't understand is why the stopping potential doesn't depend on the kinetic energy of the emitted electrons.