As wavelength increases, the energy of a photon _________ and its frequency _________.
A) increases; decreases
B) increases; increases
C) decreases; decreases
D) decreases; increases

Question

Quizplus · Accepted Answer

According to the formula E=hf, where E is energy, h is Planck's constant, and f is frequency, it can be seen that as wavelength increases (and frequency decreases), the energy of a photon will also decrease (Option C is correct). Therefore, Option A and B are incorrect.

As Wavelength Increases, the Energy of a Photon _________ and Its