Modern Physics
Modern Physics
2nd Edition
ISBN: 9780805303087
Author: Randy Harris
Publisher: Addison Wesley
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Chapter 6, Problem 49E
To determine

Time require for an electron to reach length of an automobile

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The wavefunction for a quantum particle tunnelling through a potential barrier of thickness L has the form ψ(x) = Ae−Cx in the classically forbidden region where A is a constant and C is given by C^2 = 2m(U − E) /h_bar^2 .   (a) Show that this wavefunction is a solution to Schrodinger’s Equation.   (b) Why is the probability of tunneling through the barrier proportional to e ^−2CL?
Q/ Show that the oscillating probability density is linear in arbitrary wave beams that oscillates with a frequency equal to that of a linear oscillator?
At time t = 0  the wave function for a particle in a box is given by the function in the provided image, where ψ1(x) and ψ1(x) are the ground-state and first-excited-state wave functions with corresponding energies E1 and E2, respectively. What is ψ(x, t)? What is the probability that a measurement of the energy yields the value E1? What is <E>?
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