Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
JEEMAIN and NEET
>>
Physics
>>
Class11
>>
Mechanical Properties of Solids
2 wire of length 1 : 2 and area in the ratio 2 : 1 is applied with equal force stretch equally .Find the ratio of modulus of rigidity
$\begin{array}{1 1}(A)\;4 : 1\\(B)\;2 : 1\\(C)\;1 : 1\\(D)\;1 : 4\end{array} $
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
easy
Share
asked
May 7, 2014
by
sreemathi.v
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
As $Y=(\large\frac{f}{a})\frac{l}{\Delta l}$
$\Rightarrow Y\propto \large\frac{l}{a}$
$\Rightarrow \large\frac{Y_1}{Y_2}=(\large\frac{l_1}{l_2})(\frac{a_2}{a_1})$
$\Rightarrow \large\frac{1}{2}\times \frac{1}{2}$
$\Rightarrow \large\frac{1}{4}$
Hence (D) is the correct answer.
answered
May 7, 2014
by
sreemathi.v
Please
log in
or
register
to add a comment.
Related questions
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
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
medium
asked
May 8, 2014
by
sreemathi.v
1
answer
2 wires of radius in ratio 1 : 2 have young modulus in ratio 2 : 3.Equal force is applied on them ,what is the ratio of elastic potential energy
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
difficult
asked
May 8, 2014
by
sreemathi.v
1
answer
If a force F displace 0.25cm with respect to bottom.What is F if modulus of rigidity is $5\times 10^5$.
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
medium
asked
May 8, 2014
by
sreemathi.v
1
answer
A 3cm cube has its upper face displaced by 0.1cm by a tangential force.If modulus of rigidity of material is $5\times 10^4N/m^2$.Find the force
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
easy
asked
May 7, 2014
by
sreemathi.v
1
answer
Two steel wire are hang from roof.Their length and radius are in the ratio 3 : 5 and 1 : 2 respectively.If the extension in first wire is 2mm,what is extension in other if force applied is in the ratio 2 : 3?
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
difficult
asked
May 7, 2014
by
sreemathi.v
1
answer
A 50KN force is applied on a table,the length of four legs of table is 2m each and of radius 5cm.If young modulus of material of table is $5\times 10^{10}N/m^2$.Find the decrease in length in a leg of table.
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
easy
asked
May 7, 2014
by
sreemathi.v
1
answer
If $Y_{Steel}=2\times 10^{11}N/m^2$ ,what force must be applied to steel rod of $l=2m$ and $r=2mm$ to stretch it by 1mm
jeemain
physics
class11
ch9
ch10
properties-of-solids-and-liquids
easy
asked
May 7, 2014
by
sreemathi.v
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...