The De Broglie Wavelength of an Electron Is 8

question 22

Multiple Choice

The de Broglie wavelength of an electron is 8.7 × 10^{- 11} m. The mass of an electron is 9.1 × 10^{- 31} kg. The velocity of this electron is _ m/s.

• A) 8.4 × 10⁶
• B) 8.4 × 10³
• C) 6.9 × 10^{- 5}
• D) 1.2 × 10^{- 7}
• E) 8.4 × 10^{- 3}

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