Eigenfunction/Eigenvalue question

[noahcharris]

Hey all,

So I was watching an MIT OCW video on intro QM and came across this 'clicker' question. (Shows up at 4:45)


Apparently the correct answer is B, but C looks valid to me as well. Could someone explain why C is incorrect?

Thanks

 

[Dr. Courtney]

Work it out with pencil and paper carefully, and you'll see that there are only two combinations that work.

 

[noahcharris]

Oh wow, I seriously misread the question... Thank you. This thread should be closed probably.