If the de Broglie wavelength of an electron is 44 nm,what is its velocity? (The mass of an electron is 9.11 × 10^-31 kg.) A) 6.0 × 10^-5 m/s B) 1.2 × 10³ m/s C) 1.7 × 10⁴ m/s D) 3.1 × 10¹⁰ m/s E) 4.8 × 10²² m/s

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Quizplus · Accepted Answer

The de Broglie wavelength formula is λ = h / (mv), where h is Planck's constant (6.626 × 10^-34 Js). Solving for v gives v = h / (mλ). Substituting the given values, v = 6.626 × 10^-34 / (9.11 × 10^-31 × 44 × 10^-9) ≈ 1.7 × 10^4 m/s.

If the De Broglie Wavelength of an Electron Is 44