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Another Quick Couple of Infinite Well Questions

  • Thread starter G01
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G01
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1. Homework Statement
Problem 1. If I had a wavefunction: [tex] \Psi(x,0) = A(\psi_1(x) + \psi_2(x))[/tex]

What is the probability of getting E1 or E2 as your energy?

Problem 2 You have a wavefunction:

[tex] \Psi(x,0) = Ax; 0<= x <= a/2 ; A(a-x); a/2<= x <= a [/tex]
What is the probability that an energy measurement would yield E1.

2. Homework Equations
Given Up above


3. The Attempt at a Solution
For problem 1, i feel the probabilities should be 1/2 for each of them, but this seems too easy. I also normalized and found Psi(x,t), A = 1/sqrt(2)

For problem 2 I'm completely lost
There are an infinite amount of energy levels so shouldnt the probability be 0, but then this doesn't make any sense. I feel I'm missing something. Are the probabilities not that easy?
 

Answers and Replies

G01
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wait, just remembered....i gotta find c_n^2...
 

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