Is it doable?
-If you’re willing to work hard for it then yes, it’s doable.
Is it really challenging for a student who has deep passion and high competence in both?
-College is meant to be challenging, so I wouldn’t think this would be an exception. That being said, if you have an interest in both these subjects you’ll find the challenge enjoyable and rewarding.
Also, if one does a double major in say Math and Physics from Cornell, will it look good on my resume?
-Most likely, although it’s just one part of your resume. Internships, COOPs, work experience, etc. can help enhance a resume as well.
Will it look good while applying to graduate schools provided a still maintain a high GPA while double majoring?
-Yes, although I think most graduate schools expect for your GPA to be high.
What are the possible pros and cons in doing a double major in CAS in math and physics?
-Pros are rather obvious. You get two majors, and a lot of job opportunities and career fields open up. The only cons may be the enhanced workload.
This may seem hypothetical or INSANE, but just out of curiosity, is it possible to triple major in CAS in math, physics and astronomy?
-Why would you do this ;-; I don’t think any advisor would recommend you do this. Even if it’s allowed, double majoring requires you to carefully select your courses so that you can graduate on time. Sliding in an additional major on top of all that gives you a whole new slew of courses to take. You’d need a ton of AP credit (honestly, 2 semesters worth probably) to graduate by the skin of your teeth at the end of 4 years.
Is it looked down upon by people or is it respected?
-No one really looks down on anyone here. Every major is respected. If you enjoy it that’s all that matters.
Ans also is it really really really… hard to do a triple major in math, physics and astronomy in Cornell Arts and Sciences?
-I think it would be really really really hard to do anywhere.