- #1

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## Homework Statement

## Homework Equations

## The Attempt at a Solution

I'm fine with parts a) and b)

However I don't understand what part c) is asking me to do. How do I 'measure' an operator?

There are only two things I can think to do:

1. Find the expectation values of A for <Φ

_{1}|A|Φ

_{1}> and <Φ

_{2}|A|Φ

_{2}>

or

2. Find the operator eigenvalues of A

I know how to perform these tasks, so the only thing I'm confused about is the wording. I don't really understand what is meant when it talks about 'measuring' an operator.

Thanks.