Question

An iron bar of length L cm and cross-section A cm2 is pulled by a force of F dyne from both
ends so as to produce an elongation / cm. Which of the following statements is correct?-
​

Answer 1

Answer:

An iron bar of length l cm and cross section A cm2 is pulled by a force F dynes from the ends so as to produce an elongation l cm. Which of the following statements is correct?

a)Elongation is directly proportional to area of cross-section A.

b)Elongation is inversely proportional to length

c)Elongation is inversely proportional to area of cross-section A.

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

Correct answer is option 'C'. Can you explain this answer?

Class 11 Question

By Anjeeta Ale ·Jan 28, 2019·Class 11

Answer ReportShare

Tejaswini Phanse answered Jan 29, 2019

C

Upvote | 1

This discussion on An iron bar of length l cm and cross section A cm2 is pulled by a force F dynes from the ends so as to produce an elongation l cm. Which of the following statements is correct?a)Elongation is directly proportional to area of cross-section A.b)Elongation is inversely proportional to lengthc)Elongation is inversely proportional to area of cross-section A.d)Elongation is directly proportional to Young’s modulus.Correct answer is option 'C'. Can you explain this answer? is done on EduRev Study Group by Class 11 Students. The Questions and Answers of An iron bar of length l cm and cross section A cm2 is pulled by a force F dynes from the ends so as to produce an elongation l cm. Which of the following statements is correct?a)Elongation is directly proportional to area of cross-section A.b)Elongation is inversely proportional to lengthc)Elongation is inversely proportional to area of cross-section A.d)Elongation is directly proportional to Young’s modulus.Correct answer is option 'C'. Can you explain this answer? are solved by group of students and teacher of Class 11, which is also the largest student community of Class 11. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for Class 11 on EduRev and even discuss your questions like An iron bar of length l cm and cross section A cm2 is pulled by a force F dynes from the ends so as to produce an elongation l cm. Which of the following statements is correct?a)Elongation is directly proportional to area of cross-section A.b)Elongation is inversely proportional to lengthc)Elongation is inversely proportional to area of cross-section A.d)Elongation is directly proportional to Young’s modulus.Correct

Answer 2

Answer: An iron bar of length L cm and cross-section A cm2 is pulled by a force of F dyne from both ends so as to produce an elongation / cm Elongation is inversely proportional to area of cross-section A.

Explanation:

Step : 1  This article discusses how an iron bar with a cross section of A cm2 and a length of L cm can be elongated by L cm by applying a force of F dynes from the ends. Which of the subsequent claims is true? a) Elongation is inversely correlated with cross-sectional area A. Elongation is negatively correlated with length (b), area of cross-section A (c), and length (c). d)Elongation and Young's modulus are inversely correlated. "C" is the answer that is correct. Can you elaborate on this response? is carried out by Class 11 Students on Endured Study Group. Questions and Responses for A force F dynes is applied to the ends of an iron bar with a cross area of A cm2 and a length of l cm, causing an elongation of l cm.

Step: 2  if the solution is not immediately available; it will likely be answered by a member of the community. On EduRev, you can review other questions, MCQs, videos, and tests for Class 11 and even discuss your inquiries. A force F dynes is applied to the ends of an iron bar with a cross area of A cm2 and a length of l cm, causing an elongation of l cm. Which of the subsequent claims is true? a) Elongation is inversely correlated with cross-sectional area A. Elongation is negatively correlated with length (b), area of cross-section A (c), and length (c). d)Elongation and Young's modulus are inversely proportional.

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