Question

What is the wavelength of a photon having a frequency of 64.6THz? (1THz=1015Hz, c=3.00 x 108m/s, h=6.63x10-34J·s)
A) 0.215nm
B) 4.28 x10-23 nm
C) 1.28 x10-14 nm
D) 4.64nm
E) 4.64 x1015 nm

Answer

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