How many physics courses does a typical resident have to take during residency? Is there a separate physics board that has to be taken in addition to the Step III and the Specialty boards? I have heard Radiology is one of the most difficult residencies due to the physics. Have I been mislead? I understood physics in undergrad, but by no means was I proficient at it, will that matter?
hans19 is right on. Don't sweat it for now... if you're smart enough to get into med school and match in rads, you're smart enough to pass the boards.
That being said, radiology boards are notoriously a pain. Physics boards are usually taken in 2nd or 3rd year (PGY3 or 4), and many programs will send you to a crash course or will provide a lecture series. Luckily, my program does both... and there are all kinds of recalls and parallel exams (e.g. Raphex) to help guide your studying. Although last year's pass rate was only in the mid-80s (eep), I've got my fingers crossed that I'll pass this Friday.
Written boards are usually taken in September of fourth year (PGY5), and are typically regarded as a nuisance. Recalls from prior exams are key, and the pass rate is high.
Oral boards are no joke, and require months of preparation. These are taken in June of fourth year, and although most pass (>90%), you will be constantly quizzed by 10 national leaders in various fields of radiology for 5 hours. This requires a trip to Louisville, and by the time you get there, you'll be on your game.
Radiology is a great field, and board exams shouldn't sway your decision. When it comes time to take physics, do your homework and you'll be ok.