Why does the stopping potential not depend on the intensity of incident light?

[P-Jay1]

Why does the stopping potential not depend on the intensity of incident light?

 

[ZapperZ]

Why does the stopping potential not depend on the intensity of incident light?

Look at the Einstein photoelectric effect equation that describes light's energy with respect to the work function of the material. Try to make the connection between that equation, and your question.

Zz.

 

[P-Jay1]

Look at the Einstein photoelectric effect equation that describes light's energy with respect to the work function of the material. Try to make the connection between that equation, and your question.

Zz.

I did and I can't!

 

[Meir Achuz]

The stopping potential depends on the material, and has no relation to the incoming light.

 

[ZapperZ]

I did and I can't!

Write it down here and tell me what you think the equation means.

The stopping potential depends on the material, and has no relation to the incoming light.

Er.. yes it does. Use higher energy photons on the SAME material, and the stopping potential will be different.

Zz.

 

[Meir Achuz]

Sorry, I thought he meant the work function.
I just read it carelessly.

 

[jollyPHYSICS]

It's simply because the intensity of light does not determine whether or not electrons is liberated or not. In other words wavelength and frequent are the only determinant here.