Data for the photoelectric effect of silver are given in the table.
Using these data, find the experimentally determined value of Planck's constant, h, and the threshold frequency, ν0, for silver.
I've already answered the first part (h=6.626*10^-34) but I'm stuck on the second
Table: (kind of reproduced because I can't attach a photo)
Column 1: Frequency of incident radiation (10^15) s^(−1)
2.00
2.50
3.50
4.00

Column 2: Kinetic energy of ejected electrons (10^−19 J)
5.90
9.21
12.52
15.84
19.15

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