Question
Question: The Young’s modulus of a wire of length L and radius r is Y N/m<sup>2</sup>. If the length and radiu...
The Young’s modulus of a wire of length L and radius r is Y N/m2. If the length and radius are reduced to L/2 and r/2, then its Young’s modulus will be
A
Y/2
B
Y
C
2Y
D
4Y
Answer
Y
Explanation
Solution
Young's modulus do not depend upon the dimensions of wire. It is constant for a given material of wire.