Which outcome will occur when an electron's wave function extends into a forbidden energy gap?

💡 Explanation

Quantum tunneling happens because the electron's wave function penetrates a potential barrier; therefore, it can tunnel through, rather than being reflected because confinement would demand discrete energy levels rather than continuous.

• Which instability can arise within reverse-biased semiconductor diodes under high-frequency operation?
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• Which outcome occurs when imperfections cause electron confinement?
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