These are my Plus Two Physics formulae: a quick-reference sheet for Class Twelve CBSE board students.
The sheet covers four areas: electromagnetism, optics, modern physics, and semiconductors. It is designed for fast revision: the kind you do in the days before an exam, when you need the key relations in front of you and not buried inside a textbook. Pick up any topic, scan the formulae, and move on.
I put this together before university. In 2011, I joined Electronics and Communication Engineering at BITS Pilani, Dubai Campus. Two years in, from a hostel room in 2013, I started putting my handwritten notes online so others could learn from them. Since then, at least one person somewhere in the world has studied from my notes every single day. That still matters to me.
Everything here is free. The full sheet is a PDF embedded on this page. Read it here, or open it and download it for yourself.
Learn. Share. Repeat.