Work-sheets: Questions : (Cost, Revenue) 1. The difference between ‘explicit cost’ & ‘implicit cost’ – Explicit cost refers to 1. What is opportunity cost – The opportunity cost of any good is the 2. What is variable cost – Variable costs are those costs which are. 3. Do fixed costs affect the marginal cost – 4. What are fixed costs – Fixed costs are those costs which are incurred 5. Differentiate between short-run & long-run – 6. What is a production function – A production function 7. What is marginal physical product – Marginal physical product refers to the 8. What does the law of variable proportions state – Acc. to law of variable proportion 9. What is meant by ‘returns to scale’ – Returns to scale refers to 10. Mention two causes of decreasing returns to a factor of production – 1) 2) 11. Give two examples of external economies of scale – 1) 2) 12. Mention two internal diseconomies of scale – 1) 2) 13. What is meant by indivisibility of a factor of production – Extend Response Questions 14. Define monopoly – Monopoly is a form of market where there 15. Define imperfect competition – Imperfect competition is a form of market where there 16. What is oligopoly – In oligopoly there are 17. What is meant by the term ‘homogeneous goods’ – Homogenous products are those products? 18. What do you mean by product differentiation – Product differentiation means 19. What do you mean by price discrimination – In monopoly there is 20. What are selling costs – Selling costs are those costs which are 21. Give two distinguishing features of perfect & imperfect competition –