If a Quantum of Radiation Has an Energy of 3

Multiple Choice

If a quantum of radiation has an energy of 3.0 keV,what is its wavelength? (h = 6.63 × 10−³⁴ J⋅s,1 eV = 1.60 × 10−¹⁹ J,c = 3.00 × 10⁸ m/s,and 1 nm = 10−⁹ m)

A) 0.62 nm
B) 0.32 nm
C) 0.41 nm
D) 1.02 nm