NCERT Solutions for Class 12 Micro Economics Supply
NCERT Solutions for Class 12 Micro Economics Supply
NCERT Solutions for Class 12 Micro Economics Supply is designed and prepared by the best teachers across India. All the important topics are covered in the exercises and each answer comes with a detailed explanation to help students understand concepts better. These NCERT solutions play a crucial role in your preparation for all exams conducted by the CBSE, including the JEE.
NCERT TEXTBOOK QUESTIONS SOLVED
1. Define supply. [CBSE, Foreign 2004]Ans. Supply refers to the quantity of a commodity that a firm is willing and able to offer for sale, at each possible price during a given period of time.
2. Define market supply. [CBSE 2005]Ans. Market supply refers to the quantity of a commodity that all firms are willing and able to offer for sale at each possible price during a given period of time.
3. State any two factors affecting elasticity of supply.Ans. (i) Nature of commodity;
(ii) Time period.
Ans. Supply will increase.
5. What is the shape of a supply curve?Ans. Supply curve is a positively shaped upward sloping curve.
6. State the law of supply. [CBSE 2003]Ans. It states that price of the commodity and quantity supplied are positively related to each other when other factors remain constant (ceteris paribus).
7. What causes a movement along the supply curve of a good? [CBSE 2004]Ans. Change (increase or decrease) in price causes a movement along the supply curve.
Ans. Fall in price and fall in quantity supplied, i.e., contraction in supply.
9. What causes an upward movement along the supply curve of a commodity? [CBSE 2004]Ans. Rise in price and rise in quantity supplied, i.e., expansion in supply.
10. Define price elasticity of supply.Ans. The degree of responsiveness of supply to the changes in price of the commodity is known as Price Elasticity of Supply.
11. If the quantity supplied does not change at all as price changes, what will be the elasticity of supply?Ans. Perfectly inelastic supply (ES = 0).
12. What is the price elasticity of supply of a commodity whose straight line supply curve passes through the origin forming an angle of 75°? [CBSE Sample Paper 2010]Ans. Unitary elastic (ES = 1).
13. When is the supply of a commodity called 'elastic'? [CBSE 2006]Ans.The supply of a commodity is called 'elastic' when the percentage change in quantity supplied is more than percentage change in price, then ES > 1 and the result is known as more than unit elastic supply.
14. Price elasticity of supply of a good is 0.8. Is the supply 'elastic' or 'inelastic', and why? [CBSE Outside, CBSE 2006]Ans. When PES = 0.8, PES is inelastic because percentage change in quantity supplied is less than percentage change in price.
15. What is meant by perfectly elastic supply of a commodity? [CBSE 08C]Ans. When quantity supplied changes and price remains constant, then the supply of such commodity is said to be perfectly elastic.