If the wavelength of a photon is doubled, what happens to its energy?
A) It stays the same.
B) It is increased to four times its original value.
C) It is doubled.
D) It is reduced to one-fourth of its original value.
E) It is reduced to one-half of its original value.

Question

Quizplus · Accepted Answer

The energy of a photon is inversely proportional to its wavelength, as given by the equation E = hc/λ. If the wavelength is doubled, the energy is halved.

If the Wavelength of a Photon Is Doubled, What Happens