What Is the Kinetic Energy of Each Electron in a Beam

question 54

Multiple Choice

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10^-³¹ kg;and the neutron mass is 1.67 × 10^-²⁷ kg.

• A)1830 eV
• B)42.8 eV
• C)3.35 × 10⁶ eV
• D)5.46 × 10^-⁴ eV
• E)2.34 × 10^-² eV

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