Ultraviolet radiation with a wavelength of 248 nm in vacuum is often used in…

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

Ultraviolet radiation with a wavelength of 248 nm in vacuum is often used in photolithography. Calculate the energy of a single photon of this radiation in electronvolts. Use c=3.00×108 m s−1c = 3.00 \times 10^{8}\,\text{m s}^{-1}, h=6.626×10−34 J sh = 6.626 \times 10^{-34}\,\text{J s}, and 1 eV=1.602×10−19 J1\,\text{eV} = 1.602 \times 10^{-19}\,\text{J}.

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