Lesson: Quantum Tunneling through Potential BarriersPhysics
In this lesson, we will learn how to calculate the probability that a particle will tunnel through a potential barrier with energy exceeding that of the particle.
Sample Question Videos
An electron with an energy of 5.0 eV impacts on a barrier of width 0.30 nm. Find the probability that the electron will tunnel through the barrier if the barrier height is 7.00 eV.
An electron with initial kinetic energy 32.0 eV encounters a square potential barrier with height 41.0 eV and width 0.250 nm. Find the probability, as a percentage, that the electron will tunnel through this barrier.
An electron with kinetic energy 2.0 MeV encounters a potential energy barrier of height 16.0 MeV and width 2.00 nm. What is the probability that the electron emerges on the other side of the barrier?