AUTUMN BREAK HOLIDAY HOME WORK CLASS XI BUSINESS STUDIES
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1 BUSINESS STUDIES Do all the questions from NCERT of the following chapters in homework copy 1) Public, Private and Global enterprises 2) Business services 3) Emerging mode of business 4) Social responsibility Do all the case study/hots/multiple choice question of the above chapters also in your homework copy. PROJECT WORK Find out all the types of emerging modes of business. Analyze and explain the use of these modes of business in business activities. Explain the merits and demerits of all types of above mentioned modes. ACCOUNTS Do at least 5 questions from each of the following chapters 1) Journal, Ledger and Trial Balance 2) Cash Book (Double Column Cash Book) 3) Subsidiary Books 4) Bank Reconciliation Statement 5) Trial balance 6) Depreciation (WDV Method) 7) Accounting for Bill of Exchange Project work Write the General transaction of a small business near by your locality for 5 days and convert them into Journal and Ledgers. Also prepare Trial Balance to know that there is no arithmetic mistake in books of account.
2 HINDI
3 HISTORY 1. CW- Complete the glossary, Map diagram of Chapter 7 2. HW -Complete HistoryCopy till Chapter Revision from 1 to 6 chapters for half yearly examination 4. HW Copy- Map Skills. 5. BIOLOGY 1-PREPARE FOR HALF YEARLY EXAMS. 2-PRACTICE DIAGRAM FROM CHAPTER 1 TO CHAPTER 10. CHEMISTRY 1. Preparation for mid test (Oct-17) 2.Solve NCERT exercise of Chapters thermodynamics and chemical equilibrium
4 Q1 Q2 COMPUTER SCIENCE Explain the following with example Software, Hardware, firmware and livewire. Compiler and interpreter Application software and system software Functional diagram of computer Different types of computers OS Functions of OS Types of OS Super Computers develops in India Booting and Types of Booting Steps of booting up process Different boot loader Open source software Freeware Proprietary Software Scheduling (primitive and non-primitive ) Microprocessor CISC, RISC and EPIC RAM and ROM volatile and nonvolatile memory Data Bus and type of Bus Port and different types of Port Conditional operator Datatype (Fundamental and Derived data Type) Pre increment and post increment operator Type conversion Errors( Logical, Syntax, Semantics, Divide Error ) Entry control and Exit Control Loop Different types of Comments Characteristic of Good program Maintaince and different types of maintaine Problem solving methodology Different types of operator Programming (Write the C++ code for the following program) To calculate Simple interest
5 MATHEMATICS SOLVE 10 QUESTIONS FROM SET TO BINOMIAL THEOREM FROM NCERT EXAMPLER PERMUTATIONS AND COMBINATIONS 1. How many different words can be formed by using all the letters of word SCHOOL? 2. There are 10 points on a circle. By joining them how many chords can be drawn? 3. InhowmanywayscanthelettersofthewordPERMUTATIONSbearrangedifthe wordsstartwithpandendwiths? 4. Determinethenumberof5cardcombinationsoutofadeckof52cardsifthere isexactlyoneaceineachcombination. 5. Find n, if 2n C 1, 2n C 2 and 2n C 3 are in A.P. 6. Determine the number of 5 cards combinations out of a pack of 52 cards if exactly 3 out of 5 cards are ace cards? 7. IfthedifferentpermutationsofalltheletterofthewordEXAMINATIONare listedasinadictionary,howmanywordsarethereinthislistbeforethefirst wordstartingwithe? 8. The English alphabet has 5 vowels and 21 consonants. How many words with two different vowels and 2 different consonants can be formed from the alphabet? 9. From a class of 15 students, 10 are to choosen for a picnic. There are two students who decide that either both will join or none of them will join. In how many ways can the picnic be organized? 10. Using the letters of the word, ARRANGEMENT how many different words (using all letters at a time) can be made such that both A, both E, both R and both N occur together. OR Find the number of words with or without meaning which can be made usingallthelettersofthewordagain.ifthesewordsarewrittenasinadictionary, whatwillbethe50thword?
6 11. How many different products can be obtained by multiplying two or more of the numbers 2, 3, 6, 7, 9? 12. Acommitteeof3personsistobeconstitutedfromagroupof2menand 3women.Inhowmanywayscanthisbedone?Howmanyofthesecommitteeswould consist of 1 man and 2 women? Is it essential for us to include women in all of committees for betterment of our society. 13. (i)whatisthenumberofwaysofchoosing4cardsfromapackof52 playing cards? In how many of these (ii) fourcardsareofthesamesuit, (iii) fourcardsbelongtofourdifferentsuits, OR I) arefacecards, II) twoareredcardsandtwoareblackcards, III) cardsareofthesamecolour? 14. A father with 8 children takes three at a time to the zoo as often he can without taking the same three children together more than once. How often he will go and how often each child will go? Is frequent visit to zoo make us aware about the environment? 15. Acommitteeof3personsistobeconstitutedfromagroupof2menand 3women.Inhowmanywayscanthisbedone?Howmanyofthesecommitteeswould consist of 1 man and 2 women? Is it essential for us to include women in all of committees for betterment of our society.
7 BINOMIAL THEOREM 1. Find the fourth term in the expansion of ( 2x 1 ) Which is larger ( 1.01 ) or (Each 2 marks) 3. Find the number of terms in the given exp. Of ( a 2 2 ab + b 2 ) Find the 4 th term from the end in the expansion of ( 3/x 2 x 6 /6 ) Find a if 17 th and 18 th terms of the expansion of ( 2 + a ) 50 are equal. 6. Find the middle term in the exp. Of ( x 2 1/x) Find the value of (999) 4. (Each 4 marks) 8. Find the coefficient of the term independent of x in the expansion of ( x 2 3/2 x ) Find the coefficient of x 4 in the expansion of ( 1 +x + x 2 + x 3 ) If p is a real no and if the middle term in the exp. Of ( p/2 +2) 8 is 1120 find the value of p. 11. Show that a n+1 8n 9 is divisible by 64 if n is a positive integer. 12. If is divided by 13 find the remainder. (Each 6 marks) 13. If the coefficient of a r-1, a r, a r+1 in the exp. Of (1+a) n are in A.P. prove that n 2 n(4r+1) + 4r 2 2 = The 2 nd, 3 rd and 4 th term in the binomial exp. Of ( x+a) n are 240, 720, 1080 respectively find s, a and n. 15. Show that the middle term in the esp. ( x-1/x) 2n is 1x3x5x (2n 1) X (-2) n n!
8 A B A B A. B Prove that 2 AUTUMN BREAK PHYSICS 2. A rod of mass M and length L is hinged at point O. a small bullet of mass m hits the rod at the lowest point with a velocity v in a horizontal direction and gets embedded in the rod after the impact. Find the angular velocity of the system after the impact. 3. Three particles each of mass m are situated at the vertices of an equilateral triangle ABC of side L as shown in the figure. Find the moment of inertia of the system about the axis AX passing through A and perpendicular to AB. 4. From a circular disc of mass 9M and radius R, a small disc of radius R/3 is removed from the disc. Find the moment of inertia of the remaining portion of the disc about an axis perpendicular to the plane of the disc and passing through the point O. 5. One quarter sector is cut from a uniform circular disc of radius R. this sector has a mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. What is the moment of inertia of the sector? 6. A uniform circular disc of mass m is set rolling on a smooth horizontal surface with a uniform linear velocity v. Find the total kinetic energy of the disc. 7. A rod of length L is placed along the x axis between x=o and x=l. the linear density of the rod varies with the distance x from the origin as =a+bx, where a and b are constants. Find the position of centre of mass of the rod. 8. The moment of inertia of a rod of length l and mass m about an axis passing through the centre and perpendicular to its length is ml 2 /12. What is the moment of inertia of the rod about an axis passing through an end? 9. Define potential energy. Show that the potential energy of a spring of spring constant k 1 2 compressed by an amount x is kx State the principle of conservation of mechanical energy and show that the principle is valid for a body falling freely. 11. Show that in head on collision of two balls of equal masses moving along a straight line, the balls simply exchange their velocities. 12. Discuss the elastic collision between two bodies in one dimension and obtain the expression for their final velocities after collision. 13. What is an inelastic collision? A moving body collides with a stationary body of different mass. After perfectly inelastic collision, both the bodies stick together and move with a common velocity. Derive an expression for the common velocity and also find the expression for the loss in kinetic energy. 14. If the horizontal range of a projectile is a and the maximum height attained is b, then prove a 16b 2 velocity of projection is 1 2 2g b.
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