When I was in middle school, I had a classmate who would look at trigonometric functions and yell, "I will never need these!" ...

Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

Scientists map the true nature of the genome with its loops and folds in four dimensions across time and space.