>>3490
Bachelor in Physics from MSU here. I've wondered the same question you pose since I graduated 2 years ago.
You won't get a job with just an undergrad degree. A Masters' is expected if you want a job in the field (especially to teach); PhDs are highly encouraged.
Companies are hiring graduates with only undergrad degrees (check out AIP.org for their listings) but I find it hard to find a job that doesn't want prior experience.
Personally, I landed a one in a million job when I applied to be a scientific technician over craigslist. I put together/inspect armature scientific equipment for a 4 person company. I don't do anything nearly as technical or mathematically intensive as a researcher or applied physicist, but I love the fuck out of what I do. Pic related: it's a crystal radio I made by hand as well as some glow in the dark soap.
In case you missed the point: you'd be surprised by what doors are opened by a physics degree.