I don't know about Poland, but you'd be surprised at what kind of jobs you can get with a physics degree in America.
It's not rare to find physics majors working as "engineers" here in the US.
CalTech has a great reputation in the US, even better than MIT in some areas, but that doesn't cross the pond in most areas.
That's really unfortunate because there are a lot of schools in the US that are way ahead of anything in Poland. (MIT, Harvard, Yale, CalTech, Georgetown, UC Berkley, Columbia, Brown, Stanford, and the list goes on)