Class 12 Micro Economics - Chapter Production and Costs NCERT Solutions | What is the law of variable proportions?

What is the total product of input?

Let the production function of a firm be Q=5L1/2K1/2Q=5L1/2K1/2 Find out the maximum possible output that the firm can produce with 100 units of LL and 100 units of KK.

Why does the SMC curve cut the AVC curve at the minimum point of the AVC curve? 

When does a production function satisfy decreasing returns to scale? 

What do the long-run marginal cost and the average cost curves look like? 

Explain the relationship between the marginal products and the total product of an input. 

What does the average fixed cost curve look like? Why does it look so? 

Why is the short-run marginal cost curve 'U'-shaped? 

Explain the concept of a production function

What are the average fixed cost, average variable cost and average cost of a firm? How are they related? 

What would be the shape of the demand curve so that the total revenue curve is?

(a) A positively sloped straight line passing through the origin?

(b) A horizontal line?

Explain market equilibrium.

Discuss the central problems of an economy.

What are the characteristics of a perfectly competitive market?

What do you mean by the budget set of a consumer?

From the schedule provided below calculate the total revenue, demand curve and the price elasticity of demand:

When do we say that there is an excess demand for a commodity in the market?

What do you mean by the production possibilities of an economy?

How are the total revenue of a firm, market price, and the quantity sold by the firm related to each other?

What is budget line?

Consider a market with two firms. In the following table, columns labelled as SS₁ and SS₂ give the supply schedules of firm 1 and firm 2 respectively. Compute the market supply schedule.

When do we say that there is an excess demand for a commodity in the market?

The market demand curve for a commodity and the total cost for a monopoly firm producing the commodity are given in the schedules below. 

Use the information given to calculate the following:

(a) The MIR and MC schedules

(b) The quantities for which MIR and MC are equal

(c) The equilibrium quantity of output and the equilibrium price of the commodity

(d) The total revenue, total cost and total profit in the equilibrium

How do the equilibrium price and the quantity of a commodity change when the price of input used in its production changes?

Discuss the central problems of an economy.

What is a production possibility frontier?

What do you mean by the budget set of a consumer?

Explain through a diagram the effect of a rightward shift of both the demand and supply curves on equilibrium price and quantity.

From the schedule provided below calculate the total revenue, demand curve and the price elasticity of demand:

At the market price of Rs 10, a firm supplies 4 units of output. The market price increases to Rs 30. The price elasticity of the firm’s supply is 1.25. What quantity will the firm supply at the new price?