Why do I always get so annoyed when my family members interupt me?

I don’t know if this is normal or not but whenever I am studying for exams, I am extremely annoyed when my family members enter my room to talk to me. Not even just my family, I get so annoyed when anyone tries to talk to me when I am studying. I know that they are doing this because they want to talk to me or hangout and stuff. But I just can’t study when people are talking to me. What I will do is send them away and then come back and talk to them. But they don’t understand this and find it rude. I don’t want to be rude, I just need to be able to study.