Metal	Li	Na	K	Mg	Cu	Ag
Work  function	2.42 eV	2.3 eV	2.25 eV	3.7 eV	4.8 eV	4.3 eV

Elements capable of exhibiting photoelectric effect with 295nm radiation

Energy of 295 nm is:

$\mathrm{E}=\frac{\mathrm{hc}}{\mathrm{\lambda }}=\frac{6.6\times {10}^{-34}\times 3\times {10}^8}{295\times {10}^{-9}\times 1.6\times {10}^{-19}}=4.195 \mathrm{eV}$

In order to occur photoelectric effect, energy of photon is greater than the work function of the metal.

Metals which undergo photoelectric effect is Na, K, Mg, and Li.