It Is Desired to Obtain a Diffraction Pattern for Electrons

question 20

Multiple Choice

It is desired to obtain a diffraction pattern for electrons using a diffraction grating with lines separated by 10 nm.The mass of an electron is 9.11 × 10^-³¹ kg.
-What is the approximate kinetic energy of electrons that would be diffracted by such a grating?

• A)1.5 × 10^-⁶ eV
• B)1.5 × 10^-⁴ eV
• C)1.5 × 10^-² eV
• D)1.5 × 10² eV
• E)1.5 × 10⁸ eV

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