Energy efficiency in physics is not measured the way most people think about it. Instead of asking how much heat a process ...

Most of us first hear about the irrational number π (pi) – rounded off as 3.14, with an infinite number of decimal digits – in school, where we learn about its use in the context of a circle. More ...

If you are worried and want to know how to fast-track and give the final push to your preparation, here are some suggestions on important topics, formulas, high-weightage units, along with what you ...