A photon has a linear momentum of

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

Problem

A photon has a linear momentum of 4.0×10−27 kg⋅m/s4.0\times10^{-27}\,\text{kg}\cdot\text{m/s}. What is the photon’s energy, expressed in electron-volts (eV)? (a) 3.8 eV3.8\,\text{eV} (b) 5.0 eV5.0\,\text{eV} (c) 7.5 eV7.5\,\text{eV} (d) 47 eV47\,\text{eV}

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