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An iron bar of length ‘l’ m and cross section ‘A’ m2 is pulled by a force of ‘F’ Newton from both ends so as to produce and elongation in meters. Which of the following statement statements is correct ? (a) Elongation is inversely proportional to length l (b) Elongation is directly proportional to cross section A (c) Elongation is inversely proportional to A (d) Elongation is directly proportional to Young’s modulus

An iron bar of length ‘l’ m and cross section ‘A’ m2 is pulled by a force of ‘F’ Newton from both ends so as to produce and elongation in meters. Which of the following statement statements is correct ?

(a) Elongation is inversely proportional to length l

(b) Elongation is directly proportional to cross section A

(c) Elongation is inversely proportional to A

(d) Elongation is directly proportional to Young’s modulus

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

The answer is option c

Regards

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