Final answer:
The energy of a photon with a frequency of 7.39×1015 Hz is calculated using Planck's constant and is 4.89734×10-18 J per photon.
Step-by-step explanation:
To determine the energy in joules per photon of radiation with a frequency of 7.39×1015 Hz, we can use the equation E = hf, where h is Planck's constant and f is the frequency of the radiation.
Using Planck's constant, h = 6.626 × 10-34 J·s, and the given frequency, f = 7.39 × 1015 Hz (1/s), we can calculate the energy as follows:
E = (6.626 × 10-34 J·s) × (7.39 × 1015 Hz)
E = 4.89734 × 10-18 J per photon