An Electron Microscope Operates with Electrons of Kinetic Energy 58

Multiple Choice

An electron microscope operates with electrons of kinetic energy 58 keV.What is the wavelength of these electrons? Assume this speed is not relativistic.(h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and m_e = 9.11 × 10−³¹ kg)

A) 3.57E-20 m
B) 7.69E-13 m
C) 5.10E-12 m
D) 2.28E-10 m
E) ​1.03E-11 m