A Beam of Light with a Frequency Range From $3.01 \times 10 ^ { 14 } \mathrm {~Hz}$

question 45

Multiple Choice

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

• A) \(0.33 \mathrm { eV }\)
• B) \(0.16 \mathrm { eV }\)
• C) \(0.48 \mathrm { eV }\)
• D) \(0.21 \mathrm { eV }\)
• E) \(0.42 \mathrm { eV }\)

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