Match List-I with List-II:List-IList-II(A)Short run(I)Output per unit…

Match List-I with List-II:

List-I		List-II
(A)	Short run	(I)	Output per unit of the variable input
(B)	Average product	(II)	Input combinations that yield the same maximum possible output
(C)	Marginal product	(III)	At least one factor cannot be varied
(D)	Isoquant	(IV)	Change in output per unit of change in the input, other inputs held constant

Choose the correct answer from the options given below:

Answer & explanation

Correct answer: option 2

The correct answer is Option (2) → (A)-(III), (B)-(I), (C)-(IV), (D)-(II)

List-I	List-II	Reason
(A) Short run	(III) At least one factor cannot be varied	In the short run at least one factor stays fixed.
(B) Average product	(I) Output per unit of the variable input	AP is TP divided by the units of the variable input.
(C) Marginal product	(IV) Change in output per unit of change in the input, other inputs held constant	MP is the extra output from one more unit of the input.
(D) Isoquant	(II) Input combinations that yield the same maximum possible output	Every point on an isoquant gives the same output.

NCERT (2026-27): “3.2 The Short Run and the Long Run … In the short run, at least one of the factor – labour or capital – cannot be varied, and therefore, remains fixed. In order to vary the output level, the firm can vary only the other factor. The factor that remains fixed is called the fixed factor whereas the other factor which the firm can vary is called the variable factor.”

“3.3.2 Average Product Average product is defined as the output per unit of variable input. … Values in this column are obtained by dividing TP (column 2) by L (Column 1). …”

“3.3.3 Marginal Product Marginal product of an input is defined as the change in output per unit of change in the input when all other inputs are held constant. …”

“Isoquant In Chapter 2, we have learnt about indifference curves. Here, we introduce a similar concept known as isoquant. It is just an alternative way of representing the production function. Consider a production function with two inputs labour and capital. An isoquant is the set of all possible combinations of the two inputs that yield the same maximum possible level of output. …”