The service covers textbooks of all subjects published by NCERT for classes I to XII in Hindi, English and Urdu. The Entire book or individual chapters can be downloaded provided the …

राष्ट्रीय प्रतिभा खोज परीक्षा अखिल भारतीय विद्यालयी शिक्षा सर्वेक्षण अध्यापक नवाचार पुरस्कार राष्‍ट्रीय बाल वैज्ञानिक …

Each packet (containing 30g) of food P contains 12 units of calcium, 4 units of iron, 6 units of cholesterol and 6 units of vitamin A. Each packet of the same quantity of food Q contains 3 …

Dec 17, 2025 · National Conference on School Libraries (NCSL), 11th – 12th November 2025 at NCERT, Delhi Updated Catalogue of the National Library of Educational and Psychological …

(–1) = –7 – 5 = –12 (–1 + h) = –7 + 7h – 5 = –12 + 7h (–1 + (n –1) h) = 7 (n – 1) h – 12. Therefore,

Conic Sections (Periods 12) Sections of a cone: Circles, ellipse, parabola, hyperbola, a point, a straight line and pair of intersecting lines as a degenerated case of a conic section.

In Class XI, we have learnt how to graph a system of linear inequalities involving two variables x and y and to find its solutions graphically. Let us refer to the problem of investment in tables …

आरटीआई I तमन्ना I दीक्षा I आईसीटी पाठ्यक्रम I पुस्तकालय I क्यूएमटी ...

The first draft of the present book (Class XII) was prepared by the team consisting of NCERT faculty, experts and practicing teachers. The draft was refined by the development team in …

Tie a balloon with the help of a thread to the upper end of the delivery tube as shown in Fig.12.1. As the fermentation proceeds, carbon dioxide gas is evolved and the balloon inflates.