An Electron Is Trapped in an Infinite Square Well (A

question 11

Multiple Choice

An electron is trapped in an infinite square well (a box) of width 6.88 nm. Find the wavelength of photons emitted when the electron drops from the n = 5 state to the n = 1 state in this system. (c = 3.00 × 10⁸ m/s, h = 6.626 × 10^-34J ∙ s, m_el = 9.11 × 10^-31 kg)

• A) 6.49 μm
• B) 5.45 μm
• C) 5.91 μm
• D) 7.07 μm

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