A photon has energy given by E = hf, where h = 6.63 × 10⁻³⁴ J·s and f = 5 × 10¹⁴ Hz. What is the energy of the photon in joules?

Tue, 05 May 2026 23:27:37 +0000

Understanding Photon Energy: Calculating E = hf In the fascinating world of quantum physics, photons—elementary particles that carry light and electromagnetic radiation—play a crucial role. One fundamental equation defines a photon's energy: E = hf where: - E = energy of the photon (in joules, J), - h = Planck’s constant = 6.63 × 10⁻³⁴ J·s, - f = frequency of the electromagnetic wave.