I’m a high school junior, and since freshman year I’ve always known that I’ve wanted to major in English. I’ve worked really hard to improve my writing and argumentative skills. I’ve won a couple writing awards, went to a few writing camps, etc. Essentially, writing is my favorite thing to do ever, and it always has been.
However, I’ve been taking honors physics this year and I absolutely love it. I’ve always liked science and been decent at it (I’m currently doubled up in AP Bio and Physics), but I’ve always been turned off by a combo of bad math/science teachers and future STEM majors who would talk down to me bc I was interested in the humanities, even if I had a better grade than them. Still, my PreCalc and physics teacher are AMAZING, and its really encouraged me to reconsider my interests. This came as a huge surprise, because I’ve never been a huge math person (I’m in regular PreCalc, even tho I have an A in it) and didn’t even want to take physics this year. Still, it’s just so so so interesting to me.
I don’t know if I actually want to minor/major in Physics yet (and obviously interests change), but it is definitely something I want to pursue further. I told the guidance counselor that I was interested in Physics, and she told me that because my two interests were so different, that it might come off as me not knowing what I want to do, especially because I just got into science this year, and don’t have a lot of EC’s to back it up. She essentially told me that I should put my projected major as English, bc that was what my EC’s showed, and because STEM was so separated.
Is this true, or is she just making it up???
I’m taking AP Physics C and AP Calc my senior year, and I just joined Science Olympiad, so I will be exploring Physics at least that much.
Physics/English would be college of letters and sciences at most universities and most just don’t care what your intended major is. They know that the majority of students change at some point anyways.
What exactly is your worry?
I don’t think colleges care if your interests are completely unrelated. Do note that one program at the school may be more difficult to get into than another (ie – CS at some schools is much harder to get into than say, art history), so you may want to keep that in mind when selecting your colleges. But, I think it’s really great that you have such broad interests and that you have strengths in so many fields, and I don’t think they would care. If you get an essay asking about why you selected those majors you might need to defend it, but you should be fine with that because it looks like you have good reasons 
Colleges don’t expect you to know what you want to do. Many people change majors after they get into college. I see no problem with you being interested in both English and physics. I think it actually makes a more attractive candidate since you aren’t one dimensional.
For most colleges, you don’t declare major until long after enrollment. Even if you declared major, you can still change it easily within the same school. They would not care in that case.
I have a slightly different opinion. For admission purposes to top schools, this won’t matter (and I believe you can only put down 1 on common app and most other apps). But for some schools and highly competitive scholarships, you should think hard about why you want to major in both subjects. We found that most competitive scholarships were only interested in students with clearly articulated plans for their future. They wanted personal statements, and at scholarship weekends, my D encountered maybe 1-2 undeclared students or students who couldn’t explain how their intenddd majors and minors fit together for them.
The world needs scientists who can write, and writers who understand science.
That is not an unusual combination, and a lot more attractive to employers.