- 17

- 0

**1. Homework Statement**

The photoelectric threshold wavelength of a tungsten surface is 272nm

A) what is the threshold frequency of this tungsten

b) what is the work function in electonVolts of this tungsten

C) Calculate the maximum kinetic energy in eV of the electrons ejected from this tungsten by ultraviolet surface.

**2. Homework Equations**

A) f= W/h

B) ????

C) Kmax = hf-W

**3. The Attempt at a Solution**

i have no idea how to implement these equations, im only given the wavelegnth can some one point me in the correct direction and also if any one know a formula for part B of this problem