The Energy of a Quantum of Radiation in a Vacuum $\times$

Multiple Choice

The energy of a quantum of radiation in a vacuum that has a wavelength of 447 nm is approximately

A) 2.37 $\times$ 10^-19 J
B) 1.60 $\times$ 10^-19 J
C) 9.88 $\times$ 10^-33 J
D) 9.11 $\times$ 10^-31 J
E) None of these is correct.