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Posted Date: 15 Jan 2011      Posted By:: akansh    Member Level: Silver  Points: 5 (₹ 1)

2011 CBSE Cbse sample paper Question paper

Course: Plus II   University/board: CBSE

Sample Paper – 2011
Class – XII
Subject – Economics

Time Allowed : Three Hours M.M.100
{Set Code: 058/1}
(Micro Economics)

1 Why does the PPC look concave to the origin? [1]

2 Why is there a need for economising of resources? [1]

3. Define Consumer equilibrium. [1]

4. What is meant by derived demand? [1]

5. What is the relationship between Average revenue and marginal revenue in perfect competition? [1]

6. What is the curve shape of average physical product? [1]

7. When the elasticity of supple is said to be elastic? [1]

8. The price of cauliflower goes up by 8% and the total expenditure by a family on cauliflower goes up by 8%. What can we say about the elasticity of demand for cauliflower by this family? [1]

9. What happen to budget set when both prices as well as income is double? [1]

10. A firm is producing 20 units. At this level of output, the ATC and AVC are respectively equal to Rs. 40 and Rs. 37 Find out the total fixed cost of the firm. [1]

11. Explain the consumer equilibrium in case of single good consumption. [3]

12. What is production possibility curve? Explain following with it: [3]
(i) Under utilization of resources
(ii) Fuller utilization of resources
(iii) Growth of resources

13. Demand of a product is 'enelastic'. Its price falls. What will be its effect on total expenditure on the product? Give a numerical example. [3]

14. The quantity demanded of a commodity at a price of Rs.8 per unit is 40 units. Its price elasticity of demand is (-) 2. Its price falls by Rs.2 per unit. Calculate its quantity demanded at the new price. [3]
15. Distinguish with the help of diagram between increase in demand and expansion of demand. [3]

16. Explain the central problem "How to Produce" of an economy with example. [3]

17. How change in the income of consumer affects the demand curve of a good. [3]
18. Price elasticity of demand is (-)2. When the price of a good decreases from Rs. 12 to 10 per unit then its quantity demanded increases by 200 units. Find out the quantity demanded at decreased price. [3]

19. Explain the factors determining the supply of a good. [3]

20. Explain the geometric method of measuring elasticity of supply? [3]

21. Why does short term average cost curve in 'U' shape? [4]

22. Find the profit maximizing level of output from the following: [4]

Quantity Price Average Total Cost
(Units) (Rs. per unit) (Rs.)
7 10 6
8 9 5
9 8 6
10 7 7

23. When all physical inputs are increases in same ratio then explain its effects on production. Name the causes of increasing returns to scale. [4]

24. Define perfect competition. How is price determined in it? [4]

25. Explain with diagram the effects on equilibrium price when: [4]

(i) Demand is perfectly elastic and increase in supply
(ii) Supply is perfectly inelastic and demand increase

26. Differentiate between perfect and monopolistic competition. [4]

27. (a) Calculate and define Total Revenue and Marginal Revenue at each level of output from the following information and (b) Draw the Total Revenue and Marginal Revenue Curves from the obtained data. [6]
Output Total Revenue Marginal Revenue Average Revenue(Rs.)
1 -- -- 10
2 -- -- 9
3 -- -- 8
4 -- -- 7

28. "If the demand and supply of a commodity both increase, the equilibrium
price may not change, may increase, may decrease." Explain using diagrams. [6]

29. Why does demand curve slope downward? [6]

30. Distinguish with the help of suitable diagram between movement along with supply curve and shift in supply curve. [6]

31. With the help of a suitable diagram explain the relationship of marginal product and total product in the different stages of the law of variable proportions. [6]

32. We have the following information of a firm: [6]
Labour inputs 1 2 3 4 5 6
Total Production 50 110 150 180 180 150
What is the law behind change in output with the change in inputs? Explain it. Identify the different stages of change in total product.

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