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KENDRIYA VIDYALAYA ,GURUGRAMSUMMER VACATION 2019-20HOLIDAY HOME WORKHoliday homework (summer) for class 12 commerceAccountancy-Do all illustrations and numerical of NCERT up to chapter 5 in separate notebook.Prepare comprehensive project for accountancy.Business-1 revision of chapter-1 nature and significance of management 2 principles of management 3 marketing MANAGMENTprepare project file for final examEconomics Do 5 Practical on PPF.Do any 2 practical on TU and MU.Do any 2 practical on Opportunity Cost Do any 2 practical on consumer’s equilibrium (single commodity)Do any 2 practical on consumer’s equilibrium ( two commodity)Learn chapter no. 1,2and 3.Write notes on following topics:Consumer’s equilibrium in case of single commodity. Consumer’s equilibrium in case of two commodity.Consumer’s equilibrium in indifference curve analysis.Law of DMU. CSMake notes of chapter -17 Complete your practical file Solve monthly paper in class work copy EnglishClass XII A, B & C-(Make a separate notebook for Summer Vacation HW)-Six classified & Two Non Classified Advertisements-Draft Four Notices on different topics- Write Two Letters to Editor on different social issues or problems- Write Two Business letters (Placing order & Complaint Letter)-Two Articles on some social issuesLiterature:Write Summary/Gist of all the following chapters:Flamingo : 1 The Last Lesson 2. Lost Spring Poem : My Mother at Sixty SixVistas : 1 The Third Level 2 The Tiger KingWEExplain different types of rectifiers with circuit diagram and waveforms.MathsComplete the assignment given in the class BIOLOGYHome work – List of practicals have been given to you. Write the theory portion in your practical record files and draw the labelled diagrams wherever indicated and as explained in the class.Assignment- Revise the 3 marks and 5 marks questions of last 7 years upto the portion completed in class. S.IC1Preference of colour according to age group.2Toxicity of Nicotine and its effect3Inheritence / Occurrence of spectacles in Children4Reasons for hair fall5Movement of tectonic plates through ages6Study of Tsunami from last 25 years7Lifestyle diseases and their reversal8Benefits of exercise on our health9Adulteration of food items10Effect of Music before sleeping11Inheritance and causes of hypertension12Effects of Yoga for different problems13Switch to Stevia : A Boon for Diabetics 14Types of dreams and their interpretation15Onset and inheritance of diabetes 17Impact of use of Internet in students18Sub-Disciplines of Biology and related professions19Onset / Causes of Early puberty20Studying Science by force or by choice21Sleeping habit in human beings22Complications of pregnancies.23Effects of mobile phones and computers24Wild heritage of Sunderban Tigers25Significance of medicinal plants in human being26Age vs learning ability.28Occurrence of Diabetes mellitus 2930Life history of gangetic Dolphins31Effects of Rice eating habits on human32Harmful effects of Junk food CLASS 12TH I HISTORYRevise of chapters 1 & 2Develop a question bank from lesson first and second. Each question bank would contain one mark questions, three marks questions and five marks questions with answers.Map skill from lesson 1 and 2.Prepare the rough project work draft on any one topic assigned by CBSE in Pairs.Visit any Historical Place of India and prepare a report.PhysicsRevise lesson one and the work done in the class GeographyRevise 1-4 chapters of Human Geography and 1-3 of book 2 IndiaComplete 1-2 chapters of practical in your fileMark on the world and India mapDensity of populationPopulation growthHuman developmentXII A1.Solve all the exercise &intext questions of unit 1 to 3.2.Solve one numerical per day(total 40) equally from 3 chapters.3.Write all formulae ofphy.Chem& learn.4.Biomolecules& chemistry in everyday life-Prapare notes & solve exercise questions.5.One investigatory project from the given topics.ChemistryMathProperties of determinants(4 marks) USE Make three one’s then two zero Using the properties of determinants, show that 1. = (x – y)(y –z)(z – x) (C.B.S.E. 1991)2. =( C.B.S.E. 2006, 04)3. = (a - b)(b - c)(c - a)(a + b + c) (C.B.S.E. 1997, 96 ,2000, 2003C)4. = xyz(x – y)(y – z)(z – x) (C.B.S.E. 2000) 5. = (() (C.B.S.E. 2008, 05)6. = (5x + 4)(x – 4)2 (C.B.S.E. 1996) 7. = 9 (a + b) b2 (C.B.S.E. 2008, 02)8. = (a + b + c) (C.B.S.E. 2007, 06, 04,2000C,1998,97)9. = 2(a + b + c) (C.B.S.E. 2006, 04, 1999) 10. = a2 (a + x + y + z) (C.B.S.E. 2003) ................
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