The firm beneath perfect competition is a price taker by the reasons shown below:
A) Number of firms: The number of firms beneath perfect competition is so big that no individual firm by changing sale, can cause any meaningful modification in the total market supply. Therefore, market price remains unaffected.
B) Homogenuous product: Each and every firm in a perfectly competitive industry generate homogeneous product. Therefore, price remains similar.
C) Perfect knwledge: Each and every buyer and sellers contain perfect knowledge regarding market price therefore no firm charge a different price than market price. Therefore a uniform price prevails in market.