Matter Waves: a Nonrelativistic Electron Is Accelerated from Rest Through

question 42

Multiple Choice

Matter waves: A nonrelativistic electron is accelerated from rest through a potential difference. After acceleration the electron has a de Broglie wavelength of 880 nm. What is the potential difference though which this electron was accelerated? (h = 6.626 × 10^-34 J ∙ s, e = -1.60 × 10^-19 C, m_el = 9.11 × 10^-31 kg)

• A) 1.9 µV
• B) 1.7 µV
• C) 2.2 µV
• D) 2.5 µV

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