xpeter1130x said:
I have some questions to ask.

1) How hard is it to enter MIT?
2) How hard is it to get a Ph.D in Physics?
3) What is the possibility of getting a job after getting a Ph.D in Physics?
4) How much will I get paid after Ph.D?
5) If I want to be like Michio Kaku, what field should I take?
NuclearTide said:
1) Pretty hard, though I think (undergraduate) college admissions is stupid.
3) A physics PhD does not give you any job skills, aside from the possibility of doing more research and a quantitatively-trained brain. I know that Materials Science/Engineering is a good option for physics majors. You should check out
this thread.
I disagree with NT's answer to 3.. I don't think it applies to all branches of physics equally.1. Getting into MIT is hard. Even if your qualified in every way, your chances of getting in still aren't that great. However, getting into MIT is not a requirement for a successful career in physics.
2. It's a lot of work involved, but not impossible. The important thing is to make sure you
want to get a PhD in physics. And this is where your undergraduate classes and internships should help you.
3.As I said, I disagree with Nuclear Tides answer. The thread he linked to may apply to certain fields, but it is not general. I know quite a few people who, when done with their PhDs are able to do maintenance on complex laser systems and other optical and photonic systems, use finite element simulation software expertly, code in MATLAB, Labview and C++, give cogent talks and presentations (extremely important skill), and, of course, 6+ years of analytical problem solving experience. Any one person's PhD job prospects will strongly depend on their field and the skills they pick up there, along with how they market themselves.
4. You should only do a PhD if you really love learning physics and couldn't imagine doing anything else for a career. If your main concern is money, then you will want to reconsider a PhD. PhD's salaries are usually comfortable, but don't expect to live a life of extravagant luxury off any physicists salary. (Also, expect to work HARD for that money!)
5. Study what you love. If you choose physics, you will learn that physics and a career in physics are much different than how the popular science writers portray them.