logo

Ask Questions, Get Answers

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

The ratio of maximum tension in two string of same material having radii in the ratio 3 : 5

$\begin{array}{1 1}(A)\;1 : 1\\(B)\;3 : 5\\(C)\;5 : 3\\(D)\;9 : 25\end{array} $

Can you answer this question?
 
 

1 Answer

0 votes
AB the string made up of same material,the breaking stress is same so
$\large\frac{F_1}{a_1}=\frac{F_2}{a_2}$
$\large\frac{F_1}{F_2}=\frac{a_1}{a_2}=(\frac{r_1}{r_2})^2$
$\Rightarrow (\large\frac{3}{5})^2$
$\Rightarrow \large\frac{9}{25}$
Hence (D) is the correct answer.
answered May 8, 2014 by sreemathi.v
 

Related questions

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