A photon carries an energy of

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

Problem

A photon carries an energy of 3.10 eV3.10\,\text{eV}. What is its wavelength? Constants: h=6.63×10−34 J sh = 6.63\times10^{-34}\,\text{J\,s}, c=3.00×108 m/sc = 3.00\times10^{8}\,\text{m/s}, 1 eV=1.60×10−19 J1\,\text{eV} = 1.60\times10^{-19}\,\text{J}. (a) 2.49×10−7 m2.49\times10^{-7}\,\text{m} (b) 4.00×10−7 m4.00\times10^{-7}\,\text{m} (c) 6.40×10−7 m6.40\times10^{-7}\,\text{m} (d) 1.34×10−6 m1.34\times10^{-6}\,\text{m}

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