What is the wavelength of a monochromatic light beam,where the photon energy is 2.00 eV? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 nm = 10−9 m,and 1 eV = 1.6 × 10−19 J)
A) 414 nm
B) 1243 nm
C) 311 nm
D) 622 nm
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