Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Young's moduli of the material of wires A and B are in the ratio of 1:4, while its area of cross sections are in the ratio of 1:3. If the same amount of load is applied to both the wires, the a

Young's moduli of the material of wires A and B are in the ratio of 1:4, while its area of cross sections are in the ratio of 1:3. If the same amount of load is applied to both the wires, the amount of elongation produced in the wires A and B will be in the ratio of
[Assume length of wires A and B are same]

Option: 1

12:1


Option: 2

1:36


Option: 3

1:12


Option: 4

36:1


Answers (1)

best_answer

\begin{aligned} & \frac{\mathrm{W}}{\mathrm{A}}=\mathrm{Y} \cdot \frac{\Delta \ell_1}{\ell} \\ & \Delta \mathrm{l}_1=\frac{\mathrm{W} \ell}{\mathrm{AY}} \\ & \frac{\Delta \ell_1}{\Delta \ell_2}=\frac{12}{1} \end{aligned}            \begin{aligned} & \frac{\mathrm{W}}{3 \mathrm{~A}}=4 \mathrm{Y} \cdot \frac{\Delta \ell_2}{\ell} \\ & \Delta \mathrm{l}_2=\frac{\mathrm{W} \ell}{12 \mathrm{AY}} \end{aligned}

Posted by

sudhir.kumar

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: BTech CSE cut-offs for PwD candidates at NITs make entry easy; top institutes still selective
anam-khan

73 or 99 percentile? JEE Main result questioned, J-K candidate says, ‘Don’t create hype’
anam-khan

JEE Main 2025: 11 from Kota coaching centres among 24 students with 100 percentile

Latest Question