Question

use Einstein's photoelectric equation to show how from this graph. threshold frequency and Planck constant can be determined​

Answer 1

Explanation:

Threshold frequency can be obtained from the graph where the graph cuts the x-axis, i.e. where the value of stopping potential becomes zero. (ii) As the slope of the graph is h e , hence by calculating the slope and multiplying it by the value of charge 'e' we can also find the value of plank's constant.

Answer 2

I am not sure that I have a brain like Einstein