Practice question
Question
The de Broglie wavelength of a particle is 6.626 × 10⁻¹⁰ m. If its mass is 1.0 × 10⁻³⁰ kg, what is its velocity? (h = 6.626 × 10⁻³⁴ J s)
Explanation
v = h/(mλ) = 1.0×10⁶ m s⁻¹.
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