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A proton with initial kinetic energy 50.0 eV encounters a barrier of height 70.0 eV. What...

A proton with initial kinetic energy 50.0 eV encounters a barrier of height 70.0 eV. What is the width of the barrier if the probability of tunneling is How does this compare with the barrier width for an electron with the same energy tunneling through a barrier of the same height with the same probability ?

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