The purpose of this wiki is to provide physics graduate students and other scientists with peer-reviewed solutions to the types of problems that can be found on PhD qualifying exams. The articles consist of graduate-level problems from public problem banks. Public problem banks are often compiled by various university physics departments and include questions that they have given on previous PhD qualifying/prelim exams. The community can submit problems, search for problems, and post or correct solutions to these problems.
To write a new Physics Wiki article:
University Problem Banks
For what length of the tube will the particle leave the tube when is a maximum and ? Your answer should be in terms of and .