Author Question: Assume electrons are accelerated through a potential difference of 25000 V inside a TV picture tube. ... (Read 78 times)

lak · **on:** Aug 10, 2020

Question 1

An electron is accelerated through a potential difference of 25000 V. What is the de Broglie wavelength of the electron (in m)?

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5.9 × 10⁻¹²

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6.8 × 10⁻¹²

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6.5 × 10⁻¹²

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7.8 × 10⁻¹²

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5.5 × 10⁻¹²

Question 2

Assume electrons are accelerated through a potential difference of 25000 V inside a TV picture tube. What is the minimum wavelength that could be produced when the electrons strike the phosphor? (1 Å = 10⁻¹⁰ m)

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0.50 Å

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1.0 Å

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10 Å

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100 Å

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0.25 Å

micaelaswann · **Reply #1 on:** Aug 10, 2020

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