A photon has 3.4 * 10-18 joules of energy. Planck's constant is 6.63 * 10-34 J•s. What is the frequency of the photon? 5.12 * 10-15 Hz 1.95 * 1016 Hz 5.12 * 1015 Hz 1.95 * 10-16 Hz

For this problem, you can use the equation that represents the relationship between energy, frequency, and Planck’s constant. This formula is:

E=hu

where E is energy, u is frequency, and h is planck’s constant. Plugging in your numbers and solving for u:

(3.4x10^-18) = (6.626x10^-34) (u)

u=5.13x10^15 hertz, or the third option.