- #1
Ekramul Towsif
- 5
- 0
Homework Statement
X·ray is produced when an electron is incident on a metal surface with ##2x10^8 ms^-1## velocity
.Applying this X-ray on the surface of two metals having work function of 5 eV and 2.3eV, photoelectric effect is observed.
e by
Homework Equations
The Attempt at a Solution
##E = K_{max} + \phi##
##hf = \frac 1 2mv^2 + hf_o##
i got stucked here. i don't know what to do next
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