This book is the CBSE Class 11 Formula Handbook, published by PW (Physics Wallah) for the 2026 examination. It is an English medium (अंग्रेज़ी माध्यम) book, written entirely in English (Roman script), with no Hindi content. The handbook brings together the chapterwise key formulas for all four science and mathematics subjects of Class 11 in one compact volume — Physics, Chemistry, Biology and Mathematics. Formulas, definitions, important reactions, units and key terms are arranged chapter by chapter as per the CBSE syllabus, so students can revise an entire subject quickly before a test or exam, memorise the essential relations, and check a formula without going back to the full textbook. Its compact format makes it easy to carry and use for last-minute revision. Key Features: English medium book — complete content written in English (Roman script), no Hindi content Published by PW (Physics Wallah) For CBSE Class 11 (Class XI), 2026 examination All four subjects in one book — Physics, Chemistry, Biology and Mathematics Chapterwise key formulas arranged as per the CBSE syllabus Important definitions, units, constants and key terms included Key reactions and concept points for Chemistry and Biology Quick revision format for tests, school exams and board-level preparation Compact and easy to carry for last-minute revision Useful as a companion for JEE and NEET foundation revision Suitable for CBSE Class 11 school exam preparation 'CBSE Class 11 Formula Handbook' PW (Physics Wallah) द्वारा प्रकाशित है और यह 2026 परीक्षा हेतु तैयार की गई है। इसमें कक्षा 11 (Class XI) के चार विषयों — भौतिक विज्ञान (Physics), रसायन विज्ञान (Chemistry), जीव विज्ञान (Biology) एवं गणित (Mathematics) — के अध्यायवार महत्वपूर्ण सूत्र, परिभाषाएँ, मात्रक, नियतांक तथा मुख्य बिंदु एक ही पुस्तक में दिए गए हैं, जो त्वरित पुनरावृत्ति (Quick Revision) एवं परीक्षा से पूर्व तैयारी हेतु अत्यंत उपयोगी हैं। ध्यान दें: यह पुस्तक पूर्णतः अंग्रेज़ी भाषा एवं रोमन लिपि में है, हिन्दी में नहीं।