If the wavelength of a photon is tripled

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

If the wavelength of a photon is tripled, which of the following describes the change in the photon’s energy? (a) The energy increases to three times its original value (3E0)(3E_0). (b) The energy remains the same (E0)(E_0). (c) The energy decreases to one-third of its original value (E03)\left(\dfrac{E_0}{3}\right). (d) The energy increases to nine times its original value (9E0)(9E_0).

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