Question

What is the frequency of a photon with an energy of 4.56 × 10^-19 J?OA. 6.88 x 10^14 HzOB. 6.42 x 10^14 HzOC. 4.36 x 10^14 HzOD. 5.10 x 10^14 Hz

Answer 1

So,

There's an equation that we could use in order to find frequency, and it is the next one:

This equation tells us that the energy of the photon is equal to the product of the Plank constant (h), which is 6.626*10^-34 J.s, and the frequency.

In this problem, we know the value of E and the value of h, so we need to solve for v:

Therefore, the correct answer option is A.