How to Calculate Energy of a Photon Based on its Frequency
What is the energy of a photon with a frequency of 6 x 10^12 Hz?
A. 2.21 x 10^-42 J
B. 3.98 x 10^-21 J
C. 1.988 x 10^-25 J
D. 1.10 x 10^-46 J
Answer:
B. 3.98 x 10^-21 J
To calculate the energy of a photon, you can use the formula E = hf, where E is the energy, h is the Planck constant (6.63 x 10^-34 J·s), and f is the frequency of the photon.
In this case, the frequency of the photon is given as 6 x 10^12 Hz. Plugging this value into the formula, we get:
E = (6.63 x 10^-34 J·s) * (6 x 10^12 Hz)
E = 3.98 x 10^-21 J
Therefore, the energy of a photon with a frequency of 6 x 10^12 Hz is 3.98 x 10^-21 J.