What Is the Energy (In EV) of an Optical Photon $6.43 \times 10 ^ { 14 } \mathrm {~Hz} . \left( h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right.$

question 146

Multiple Choice

What is the energy (in eV) of an optical photon of frequency $6.43 \times 10 ^ { 14 } \mathrm {~Hz} . \left( h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right.$ , $1 \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J}$ )

• A) \(1.62 \mathrm { eV }\)
• B) \(3.27 \mathrm { eV }\)
• C) \(1.94 \mathrm { eV }\)
• D) \(2.66 \mathrm { eV }\)

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