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

A steel wire of length 4.7m and cross section area 3×106m2 stretches by the same amount as a copper wire of length 3.5 m and cross-section area 4×106m2 under a given load. The ratio of Young's modulus of steel to that of copper is


A

1.8

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B

3.6

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

0.6

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

8.7

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A

1.8


Since the load and extension are the same, the ratio YAl sould remain constant.

Therefore,

YsYc=Ac lsAs lc

=4×106×4.73×106×3.5

=1.8


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Hooke's Law
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon