Tru Physics

Problem 2.7 – Griffith’s Intro to QM

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Problem 2.7

A particle in the infinite square well has the initial wave function

\Psi (x,0) = \begin{cases} Ax, & 0\leq x\leq a/2 \\ A (a-x), & a/2\leq x\leq a \\ \end{cases}

(a) Sketch \Psi (x,0), and determine the constant A.
(b) Find \Psi (x,t).
(c) What is the probability that a measurement of the energy would yield the value E_1?
(d) Find the expectation value of the energy, using Equation 2.2.

Solution:

Problem 2.7 - Griffith's Intro to QM 1 of 2
Problem 2.7 - Griffith's Intro to QM 2 of 2

Peoblem 2.7 Solution (Download)

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