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 × 10−¹⁹ J) 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 given by E = hf, where h is Planck's constant and f is the frequency. Substituting the given values, E = (6.63 × 10^−34 J⋅s)(7.9 × 10^20 Hz) = 5.24 × 10^−13 J. Converting to MeV using 1 eV = 1.60 × 10^−19 J, we get E ≈ 3.3 MeV.

What Is the Energy of a Photon Whose Frequency Is