You Want to Have an Electron in an Energy Level

question 16

Multiple Choice

You want to have an electron in an energy level where its speed is no more than 66 m/s. What is the length of the smallest box (an infinite well) in which you can do this? (h = 6.626 × 10^-34 J ∙ s, mel = 9.11 × 10^-31 kg)

• A) 5.5 µm
• B) 11 µm
• C) 2.8 µm
• D) 1.4 µm

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