threshold frequency and work function question (1 Viewer)

[penguinzombie]

I think I am missing something but how is the work function 4eV when the threshold frequency is 10hz, cus don't you just use E=hf. Thanks

 

[kanishk]

its 10x10^14 not 10 hz, then try and convert to eV youll get it

 

[penguinzombie]

its 10x10^14 not 10 hz, then try and convert to eV youll get it

ok makes sense thank you