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A Beam of Light with a Frequency Range From 3.01×1014 Hz3.01 \times 10 ^ { 14 } \mathrm {~Hz}

Question 91

Multiple Choice

A beam of light with a frequency range from 3.01×1014 Hz3.01 \times 10 ^ { 14 } \mathrm {~Hz} to 6.10×1014 Hz6.10 \times 10 ^ { 14 } \mathrm {~Hz} is incident on a metal surface. If the work function of the metal surface is 2.20eV2.20 \mathrm { eV } , what is the maximum kinetic energy of photoelectrons ejected from this surface? (h=6.626×1034 Js,1eV=1.60×1019 J) \left( h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } , 1 \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J} \right)


A) 0.33eV0.33 \mathrm { eV }
B) 0.16eV0.16 \mathrm { eV }
C) 0.48eV0.48 \mathrm { eV }
D) 0.21eV0.21 \mathrm { eV }
E) 0.42eV0.42 \mathrm { eV }

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