Question

The threshold frequency of potassium is 3x1014Hz. The work function is

Answer 1

hello friend..!!!

according to the given question we should find the work function ,

W = hν--------( 1 )

here , w represents work function , h represents plank constant and ν represents thershold frequency 

therefore,

W = 6.634 x $10^{-34}$ x 3 x 10¹⁴ 

therefore ,

W = 1.902 x $10^{-19}$ J 

------------------------------------------------------------

hope it helps...!!!