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Consider an electron in an infinite well of width 2.1 nm . What is the wavelength...

Consider an electron in an infinite well of width 2.1 nm . What is the wavelength of a photon emitted when the electron in the infinite well makes a transition from the first excited state to the ground state? The value of h is 1.05457 × 10^−34 J · s, the Bohr radius is 5.29177 × 10^−11 m , the Rydberg constant for hydrogen is 1.09735 × 10^7 m−1 , the ground state energy for hydrogen is 13.6057 eV , and the speed of light is 2.99792 × 10^8 m/s. 1 eV = 1.60218 × 10^−19 eV . Answer in units of nm to 4 sig figs.

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