wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

There is some change in length when a 33000 N tensile force is applied on a steel rod of area of cross section 103 m2. The change of temperature required to produce the same elongation, if steel rod is heated, is: (The modulus of elasticity is 3×1011 N/m2 and the coefficient of linear expansion of steel is 1.1×105C1)

A
10C
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
20C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
30C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 10C
We know ,
Modulus of elasticity, Y=ForceArea×lΔl
3×1011=33000103×lΔl
Δll=33000103×13×1011=11×105

Also,
Change in length (thermal strain), Δll=αΔT
11×105=1.1×105×ΔT
ΔT=10C

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon