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Top CBSE Class 12 Maths Questions                   CHAPTER 1: RELATIONS AND FUNCTIONS CBSE Class 12 Mathematics Board Exam Overview  Before diving into the questions, let’s quickly look at the official marks distribution and exam pattern to plan your revision strategy effectively. Chapter-Wise Marks Distribution (Heading 3 - H3) Relations and Functions & Inverse Trigonometric Functions : 08 Marks Algebra (Matrices & Determinants) : 10 Marks Calculus (Continuity, Differentiability, Integrals, Differential Equations) : 35 Marks (Most Important) Vectors and Three-Dimensional Geometry : 14 Marks Linear Programming : 05 Marks Probability : 08 Marks Total Marks : 80 Marks (Theory) + 20 Marks (Internal) Mock Test - Functions and Relations Mock Test: Functions and Relations Q1: If f: {1,3, 4} → {1, 2, 5} and g: {1,2, 5} → {1, 3} given by f = {(1,2), (3, 5), (4,1)} and g = {(1,3), (2, 3), (5,1)}. Write dow...

English ⇄ Hindi Dictionary Academic • Competitive • Daily Use 🌐 Translate Any Word (All Words Supported) 🔍 Search Academic Words English Hindi Hinglish Meaning Principal Value प्रधान मान Inverse function ki fixed standard value Evaluate मान ज्ञात करना Expression ka exact answer nikalna Solution समाधान Problem ka step-by-step answer Prove सिद्ध करना Logic ke saath statement ko sahi dikhana Domain परिभाषा क्षेत्र Allowed x values ka set Range परास Output values ka set Function फलन Input-output relationship Identity सर्वसमिका Har value ke liye true equation Equation समीकरण Equal sign wali mathematical statement Inverse Function प्रतिलोम फलन Function ka ulta process Note: This page combines a manual academic dictionary with Google Translate to ensure ALL words are covered . © Ask Dr Abhishek Online | Educational Use Only

 CLASS XII CBSE BOARD EXAM CHEMISTRY IMPORTANT QUESTIONS                                                        

SAMPLE SIZE GENERATOR FOR MEDICAL SCIENCE   Sample Size Calculator for Medical Survey Expected Prevalence (%) Margin of Error (%) Confidence Level 95% 90% 99% Calculate Sample Size Sample Size for Medical Survey (Prevalence Study) Expected Prevalence (%) Margin of Error (%) Confidence Level 95% 90% 99% Calculate Sample Size with Finite Population Correction Initial Sample Size Total Population Size Calculate Sample Size for Case–Control Study Expected Odds Ratio (OR) Prevalence of Exposure (%) Calculate Sample Size for Comparing Two Proportions Proportion in Group 1 (%) Proportion in Group 2 (%) Calculate Non-Response Adjusted Sample Size Calculated Sample Size Expected Non-Response Rate (%) Adjust Sample Size Advanced Sample Size Calculator – Comparison of Two Means Standard Deviation (σ) Expected Mean Difference (Δ) ...

Class 12 Chemistry Practical Syllabus Class XII Chemistry Practical Examination Evaluation Scheme (Total Marks: 30) Component Marks Volumetric Analysis 08 Salt Analysis 08 Content Based Experiment 06 Project Work 04 Class Record & Viva Voce 04 Total 30 Practical Syllabus Micro-chemical methods are available for several practical experiments. Wherever possible, such techniques should be used. A. Surface Chemistry Preparation of one lyophilic and one lyophobic sol Dialysis of prepared sol Role of emulsifying agents in stabilizing emulsions Readings: Observation of sol formation, stability, color and dispersion medium. Result: Lyophilic sols were found to be more stable than lyophobic sols. Conclusion: Emulsifying agents increase stability by reducing surface tension. B. Chemical Kinetics Effect of concentration and temperature on rate of reaction between Na 2 S 2 O 3 and HCl Iodide–Hydrogen Peroxide reaction OR Clock reaction...

 CLASS XII PHYSICS PRACTICAL LIST OBSERVATION TABLES AND RESULTS  Class XII Physics Practical List (HTML) Class XII Physics Practical List To determine the resistivity of two/three wires by plotting a graph between potential difference and current. To find the resistance of a given wire/standard resistor using a meter bridge. To verify the laws of combination (series) of resistances using a meter bridge. OR To verify the laws of combination (parallel) of resistances using a meter bridge. To determine the resistance of a galvanometer by the half-deflection method and to find its figure of merit. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same. OR To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same. To find the frequency of AC mains usin...