K.E. of photoelectron was determined by:

a) frequency of light (color)

          

             Photoelectric Effect Video - Rutgers U.

b) nature of emitting metal 

Typical Plot of Frequency of
Light vs. K.E. of Photoelectron

KE of
Photoelectron

fo - threshold frequency - frequency below which no photoelectrons will be emitted

Below Threshold?

 

 

No Emission

 

 Above Threshold?

 

 

 

 Emission