The frequency of light that has a photon energy of 3.5 eV is A)9.55 $\times$ 10¹⁴Hz B)9.55 $\times$ 10¹⁵Hz C)8.46 $\times$ 10¹⁵Hz D)6.53 $\times$ 10¹⁵Hz E)4.78 $\times$ 10¹⁵Hz

Question

Quizplus · Accepted Answer

The formula for the photon energy is E = hf, where E is the energy, h is Planck's constant, and f is the frequency. We need to find the frequency, so we can rearrange the formula:
f = E/h = 3.5 eV / (6.626 x 10^-34 J s) = 8.46 x 10^14 Hz.
Note that we convert electron volts (eV) to joules (J) using the conversion factor 1 eV = 1.602 x 10^-19 J. Therefore, the correct answer is C, 8.46 x 10^14 Hz.

The Frequency of Light That Has a Photon Energy of 3.5