Physics · Quantum Mechanics
Consider the transcendental equation obtained from the Kronig-Penney model: P sin(αa)αa + cos(αa) = cos(ka) where symbols have their usual meanings and α = √2mE/ℏ2. Using this equation, find the energy of the lowest energy band at k = 0, assuming P << 1.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ℏ2P4ma2
- 2ℏ2P2ma2
- 32ℏ2Pma2
- 4ℏ2Pma2✓
Correct answer
ℏ2Pma2
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