xan4 xan4 01-10-2020 Chemistry contestada What is the energy of a wave with wavelength of 4.2 x 10-7 m. (Hint: Calculate for frequency first.) A. 4.74 x 10-28 Joules B. 4.74 x 10-19 Joules C. 8.35 x 10-32 Joules D. 2.79 x 10-40 Joules
