An 80 EV Electron Impinges Upon a Potential Barrier 100

question 7

Multiple Choice

An 80 eV electron impinges upon a potential barrier 100 eV high and 0.2 nm thick. What is the probability the electron will tunnel through the barrier?

• A)10%
• B)1.0%
• C)0.10%
• D)1.1 x 10^-4 %
• E)7.7 x 10^-10 %

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Definitions:

Confidence Interval

A range of values, derived from sample statistics, that is believed to contain the true value of a population parameter with a specified level of confidence.

Population Proportion

The fraction or percentage of members in a population that exhibit a particular trait or characteristic.

Confidence Level

The percentage of times that a confidence interval, if repeated from multiple samples, would encompass the true population parameter.

Population Parameter

A numerical value that represents a characteristic of an entire population, such as mean or variance.