A material has a work function of

PHYSICS · Single correct · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter

Problem

A material has a work function of

3.2\,\text{eV}

. Which of the following is closest to its threshold wavelength? (a)

2.5\times10^{2}\,\text{nm}

(b)

6.2\times10^{2}\,\text{nm}

(c)

3.9\times10^{2}\,\text{nm}

(d)

3.9\times10^{1}\,\text{nm}

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