Practice — Dual Nature of Radiation and Matter — StudyLoop

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cbse-physics-12.u7.t7-1.mc.001

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A metal begins to emit photoelectrons only when incident light has frequency at least

5.0\times 10^{14}\,\text{Hz}

. Using

h=6.63\times 10^{-34}\,\text{J s}

and

1\,\text{eV}=1.6\times 10^{-19}\,\text{J}

, its work function is closest to

Choose an answerA.

0.48\,\text{eV}

B.

3.31\,\text{eV}

C.

5.00\,\text{eV}

D.

2.07\,\text{eV}

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