An 80-EV Electron Impinges Upon a Potential Barrier 100 EV

question 27

Multiple Choice

An 80-eV electron impinges upon a potential barrier 100 eV high and 0.20 nm thick.What is the probability the electron will tunnel through the barrier? (1 eV = 1.60 × 10^-19 J, m_proton = 1.67 × 10^-27 kg,h = 1.055 × 10^-34 J ∙ s,h = 6.626 × 10^-34 J ∙ s)

• A)0.011%
• B)1.1%
• C)0.11%
• D)1.1 × 10^-4 %
• E)7.7 × 10^-10 %

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