The length of an iron wire is L and area of cross section is A. The increase in length is l on applying the force F on its two ends. Which of the statement is correct

Options :
  1. increase in length is proportional to area of cross section A
  2. increase in length is inversely proportional to its length L
  3. increase in length is inversely proportional to A
  4. none of the above
Answer and Explanation :-

Answer: Option 3

Explanation:

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