I enrolled at the University of Wisconsin-Eau Claire with the intent of finishing their dual degree program with UW-Madison for physics and nuclear engineering (http://www.uwec.edu/admissions/facts/dualdegree.htm). Heading into my sophomore year, it has become apparent that such a program may very well take 6 years to complete due to schedule conflicts with my minor (computer science). Therefore, I am considering simply finishing a physics degree at UWEC and moving on to grad school in physics, engineering, or operations research. University of Wisconsin-Eau Claire is a regionally respected liberal arts school, but not ranked in physics. Here is my question; Given that the University of Wisconsin-Eau Claire (http://colleges.usnews.rankingsandreviews.com/best-colleges/uw-eau-claire-3917) is not on the same tier as super-schools like Madison, and I currently hold a 3.6 (hopefully rising considerably by graduation, the 3.6 is due to one class I plan on retaking), what kind of grad schools could I be considered for? Is there any possibility one can be considered for top 20 grad schools in the aforementioned fields coming from a regional state university? Thank you in advance.