1. The problem statement, all variables and given/known data Nothing that big, just some questinos that i had about wavefunctions. i was reading this handout and came across this. Suppose i am given an equation of a wave function, how do i know whether or not does it describe the state of definite energy and/or in the state od definite momentum. 2. Relevant equations i just took an equation from the handout ѱ=Asin2(nx) 3. The attempt at a solution I normalized the function, and then I didnt really have anywhere to go.