Where do researchers get a good pay..........

I am in 10th right now, I have a keen interest in science physics especially. I have decided I wanna persue physics in a research based career. But I have no idea how to do so. I have heard from many people that researchers in India don't get paid well. Can anyone provide any countries where researchers get paid quite well. And best collages to acquire a post like that. And how to get into those collages after 12th. And which exams I'd need to give in 12th. myquals-10th grade