Calculate the de Broglie wavelength of an electron moving under a potential difference of . — Atomic Structure Chemistry Question
Question
Calculate the de Broglie wavelength of an electron moving under a potential difference of $1.5 \text{ V}$.
Answer: A
💡 Solution & Explanation
The shortcut formula for an electron accelerated through potential $V$ is $\lambda = \sqrt{150/V} \text{ \AA}$. Substituting $V = 1.5$, $\lambda = \sqrt{150 / 1.5} = \sqrt{100} = 10 \text{ \AA}$.
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