What is the energy of a photon whose frequency is 7.9 *10²⁰ Hz? (h = 6.63 *10 ^- ³⁴ J.s and 1 eV = 1.60*10 ^- ¹⁹J) A) 5.0 MeV B) 3.3 MeV C) 1.6 MeV D) 2.5 MeV

Question

Quizplus · Accepted Answer

The energy of a photon is calculated using the formula E = hf, where h is Planck's constant and f is the frequency. Substituting the given values, E = (6.63 x 10^-34 J·s) * (7.9 x 10^20 Hz) = 5.24 x 10^-13 J. Converting this energy to electron volts (eV) using 1 eV = 1.60 x 10^-19 J, we get E = (5.24 x 10^-13 J) / (1.60 x 10^-19 J/eV) = 3.275 x 10^6 eV = 3.3 MeV.

What Is the Energy of a Photon Whose Frequency Is