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Title: How do I find the energy (in eV) of an optical photon of frequency 6.43x10^14 Hz? Post by: __Aycee on Apr 6, 2013 Find the energy (in eV) of an optical photon of frequency 6.43x10^14 Hz
a. 3.27eV b. 1.62eV c. 1.94eV d. 2.66eV Title: How do I find the energy (in eV) of an optical photon of frequency 6.43x10^14 Hz? Post by: micbar on Apr 6, 2013 Energy of photon
=hf (in joules) =hf/e (in eV) (where, e=1.6x10^-19) =6.63x10^-34x6.43x10^14/(1.6x10^-19) =2.66 eV Answer is d. 2.66eV |