CMC Medical
CMC-Medical Ludhiana Solved Paper-2008
question_answer
The Youngs modulus of the material of the wire of length \[L\] and radius r is\[Y\,N\text{/}{{m}^{2}}\]. If the length is reduced to \[L\text{/}2\] and radius r/2, the Youngs modulus will be
A) Y/2
B) Y
C) 2Y
D) 4Y
Correct Answer:
B
Solution :
Youngs modulus depends upon the nature of material and is independent of the dimensions of the material.