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.

Newton’s experiment remains almost insultingly simple. Sunlight, a darkened room, a glass prism. The conclusion was unavoidable. Colour belonged to light itself. The prism merely made it visible.

Abstract: Visible light communication (VLC) is envisioned as an important technique for short-range communications, but its potential for user device (UD) localization is not fully exploited, which is ...

A new theory of "dark photons" attempted to explain a centuries-old experiment in a new way this year, in an effort to change ...