A Nonrelativistic Electron Is Accelerated from Rest Through a Potential

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 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