How Fast Must a Nonrelativistic Electron Move So Its De

question 37

Multiple Choice

How fast must a nonrelativistic electron move so its de Broglie wavelength is the same as the wavelength of a 3.4-eV photon? (m_el = 9.11 × 10^-31 kg,c = 3.00 × 10⁸ m/s, 1 eV = 1.60 × 10^-19 J)

• A)2000 m/s
• B)1900 m/s
• C)1700 m/s
• D)1600 m/s
• E)1400 m/s

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