# effective mass of electron in the infinite quantum well

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A one-dimensional quantum well of width 19 nm is created, and measurements show that the energy difference between the ground state and the first excited state is 0.19 eV.

What is the eï¬€ective mass of the electron in the well?

Answer in units of kg.

https://brainmass.com/physics/energy/effective-mass-electron-infinite-quantum-well-153319

#### Solution Summary

The solution finds the effective mass of electron in the infinite quantum well.

$2.49