A Hypothetical Particle Has a Mass of 510 MeV/c²

question 81

Short Answer

A hypothetical particle has a mass of 510 MeV/c². If such a particle at rest decays into two gamma-ray photons, what is the wavelength of each photon? (1 eV = 1.60 × 10^-19 J, c = 3.00 × 10⁸ m/s, h = 6.626 × 10^-34 J∙ s)

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