- #1

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## Homework Statement

Work Function=3.6 EV

Wavelength=250nm, UV

Maximum kinetic energy=?

## Homework Equations

E=hf

Formulas from mark scheme:

E = hc/λ

hc/λ – Φ

## The Attempt at a Solution

I had a vague idea of what to do, I just didn't understand why in the second formula from the mark scheme the work function is taken away from E