What Is the Energy (In EV)of an Optical Photon of Frequency

question 76

Multiple Choice

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

• A)2.66 eV
• B)1.62 eV
• C)1.94 eV
• D)3.27 eV