Physics

Physics

Problem

A metal surface has a work function of

2.0\,\text{eV}

. Light of frequency

8.0\times10^{14}\,\text{Hz}

falls on it. Take

h = 6.63\times10^{-34}\,\text{J s}

and

e = 1.6\times10^{-19}\,\text{C}

. Find the stopping potential

V_0

. a)

3.3\,\text{V}

b)

2.0\,\text{V}

c)

1.3\,\text{V}

d)

0.8\,\text{V}

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