Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Two rods of equal length are in parallel with area in the ratio 3 : 4 and young modulus in the ratio 5 : 3.The ratio of force on the rods is

$\begin{array}{1 1}(A)\;5 : 4\\(B)\;20 : 9\\(C)\;9 : 20\\(D)\;4 : 5\end{array} $

Can you answer this question?

1 Answer

0 votes
In parallel the extension is same so
$\Delta l_1=\Delta l_2$
$\Rightarrow \large\frac{3}{4}\times \frac{5}{3}$
$\Rightarrow \large\frac{5}{4}$
Hence (A) is the correct answer.
answered May 8, 2014 by sreemathi.v

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App