A Nonrelativistic Electron Is Accelerated from Rest Through a Potential

question 5

Multiple Choice

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 through 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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