Calculating Width of One-Dimensional Box for Photon Emission

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SUMMARY

The discussion focuses on calculating the width of a one-dimensional box that models a hydrogen atom's transition from the n=2 state to the n=1 state, resulting in the emission of a photon with a wavelength of 122 nm. The energy difference between these states must match the energy of the emitted photon. The relevant equations involve the energy levels of a particle in a one-dimensional box, specifically using the formula E_n = (n^2 * h^2) / (8 * m * L^2), where E_n is the energy level, h is Planck's constant, m is the mass of the electron, and L is the width of the box.

PREREQUISITES
  • Quantum mechanics fundamentals
  • Understanding of Planck's constant (h)
  • Knowledge of the mass of an electron (m)
  • Familiarity with the concept of energy levels in quantum systems
NEXT STEPS
  • Calculate the energy of a photon using the formula E = hc/λ
  • Explore the derivation of energy levels for a particle in a one-dimensional box
  • Learn about the implications of quantum confinement on energy states
  • Investigate the relationship between wavelength and energy in quantum mechanics
USEFUL FOR

Students studying quantum mechanics, physics educators, and anyone interested in the quantum behavior of particles in confined systems.

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Homework Statement



When a hydrogen atom undergoes a transition from the n=2 state to the n=1 level, a photon
with \lambda=122nm is emitted.

a)If the atom is modeled as an electron in a one-dimensional box, what is the width of the box in order for the n=2 to n=1 transition to correspond to emission of a photon of this energy?


Homework Equations



The Attempt at a Solution



Do not know what equations to use to solve this problem
 
Physics news on Phys.org
What is the expression that gives the energies of a particle in a one-dimensional box? Start from there. Match the energy difference from n =2 to n = 1 to the energy of the 122 nm photon.
 

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