I was recently shortlisted for interview ( for integrated Ph.d in Theoretical physics) at a research university in India. As a part of the admission procedure I am supposed to give "A write-up of 200-250 words describing your interest in your most preferred field of study. The write-up should particularly address questions such as: (1) Which particular area in your preferred subject appeals to you most? (2) Are there specific problems you would like to work on? (3) Can you suggest methods to deal with such problems? THE WRITE-UP SHOULD REFLECT YOUR ORIGINAL IDEAS. DO NOT WRITE A GENERAL ESSAY DESCRIBING THE AREA." I think this is an unfair demand to ask of a bachelors student. I am yet to know most of the existing ideas, let alone have original ones. All I know is, so far I like quantum physics the most, and generally all other topics minus the applications part (topics like AC circuits, Wave guides, Electronics, heat engines etc are examples of stuff i'm not fond of). I know I want to do research in theoretical physics but I am not in a position to understand most of the latest research going on in this field. As I am applying for integrated Ph.D, the first 2 years will consist of mainly graduate level coursework and research will start only from the 3rd year, so I will be more knowledgeable by then. But right now I would like to know some of the ongoing research topics in theoretical physics that won't be too hard on an undergraduate student, something that I will be able to explain if I am asked. Kindly give a few suggestions, so that I can look them up and find out something I am into. Thanks in advance.