A Photoelectric Surface Has a Work Function Of $2.10 \mathrm { eV }$

question 58

Short Answer

A photoelectric surface has a work function of $2.10 \mathrm { eV }$ . Calculate the maximum kinetic energy, in $\mathrm { eV }$ , of electrons ejected from this surface by electromagnetic radiation of wavelength $356 \mathrm {~nm} . \left( 1 \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J} , c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

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