MCQ
Diminishing returns occur:
  • A
    When units of a variable input are added to a fixed input and total product falls.
  • When units of a variable input are added to a fixed input and marginal product falls.
  • C
    When the size of the plant is increased in the long run.
  • D
    When the quantity of the fixed input is increased and returns to the variable input falls.

Answer

Correct option: B.
When units of a variable input are added to a fixed input and marginal product falls.

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